natural numbers 1 + 2 + 3 + 4 + ⋯ is a divergent series. The nth partial sum of the series is the triangular number ∑ k = 1 n k = n ( n + 1 ) 2 , {\displaystyle...

Lotus 1-2-3 is a discontinued spreadsheet program from Lotus Software (later part of IBM). It was the first killer application of the IBM PC, was hugely...

1-2-3; 1, 2, 3; or One, Two, Three may refer to: 1-2-3 (fuel station), in Norfolk Lotus 1-2-3, a computer spreadsheet program .123, a file extension used...

partial sums of 1 − 2 + 3 − 4 + ... are: 1, 1 − 2 = −1, 1 − 2 + 3 = 2, 1 − 2 + 3 − 4 = −2, 1 − 2 + 3 − 4 + 5 = 3, 1 − 2 + 3 − 4 + 5 − 6 = −3, ... The sequence...

3–2–1 is a British game show that made by Yorkshire Television for ITV. It ran for ten years, from 29 July 1978 to 24 December 1988, with Ted Rogers as...

3-2-1 Penguins! is an American science fiction computer-animated Christian children's television series, initially launched on November 14, 2000 as a...

3-2-1 Contact is an American science educational television show produced by the Children's Television Workshop (CTW, now known as Sesame Workshop). It...

4.3.2.1. (which stands for "4 girls, 3 days, 2 cities, 1 chance") is a 2010 British crime thriller film written, produced and directed by Noel Clarke,...

Jell-O 1-2-3 was a Jell-O gelatin product introduced in 1969 and discontinued in 1996. The product was one 4.3 ounce (121 g) powdered mix that, when properly...

is 4–2–1–3, where the midfielders are split into two defensive and one offensive player; as such, this formation can be considered a type of 4–3–3. An...

unchanged ( 1 × n = n × 1 = n {\displaystyle 1\times n=n\times 1=n} ). As a result, the square ( 1 2 = 1 {\displaystyle 1^{2}=1} ), square root ( 1 = 1 {\displaystyle...

1-2-3 Go is a 1941 Our Gang short comedy film. It was the 199th Our Gang short to be released. It was directed by Edward Cahn, and starred George McFarland...

In order theory, a branch of mathematics, the 1/3–2/3 conjecture states that, if one is comparison sorting a set of items then, no matter what comparisons...

2 (two) is a number, numeral and digit. It is the natural number following 1 and preceding 3. It is the smallest and the only even prime number. Because...

connectors are usually teal-colored. USB 3.2, released in September 2017, fully replaces the USB 3.1 specification. The USB 3.2 specification added a second lane...

November 1993, Windows 3.11 was released as a minor update, while Windows 3.2 was released as a Simplified Chinese version of Windows 3.1. Microsoft also introduced...

1, 2, 3, Sun (French: Un, deux, trois, soleil) is a 1993 French surrealist black comedy film directed by Bertrand Blier. The title of the film corresponds...

1, 2, 3 Go! is a 1961–1962 American-filmed children's television series hosted by Jack Lescoulie with Richard Thomas. The show also featured Richard Morse...

iPhone OS 3 (stylized as iPhone OS 3.0) is the third major release of the iOS mobile operating system developed by Apple Inc., succeeding iPhone OS 2. It was...

features. Guideline 1: Provide equivalent alternatives to auditory and visual content Guideline 2: Do not rely on colour alone Guideline 3: Use markup and...

"1 - 2 - 3" is a 1965 song recorded by American blue-eyed soul singer Len Barry, who also co-wrote it with John Madara and David White (the latter two...

4 3 2 1 is a 2017 novel by Paul Auster published by Henry Holt and Co. It describes four alternate versions of the life of Archie Ferguson in the 1950s...

with a 1 / 2 {\displaystyle 1/2} prefactor: for the S U ( 2 ) {\displaystyle SU(2)} group, the generators are chosen as 1 2 σ 1 , 1 2 σ 2 , 1 2 σ 3 {\displaystyle...

monikers as a jobber, until he was branded the 1-2-3 Kid after an upset victory over Razor Ramon on Raw. As 1-2-3 Kid, he held the WWF Tag Team Championship...

Chicka Chicka 1, 2, 3 is the title of a children's picture book written by Bill Martin, Jr. and Michael Sampson, and illustrated by Lois Ehlert in 2004...

dispatchers. 9-1-1 is a joint production between Reamworks, Ryan Murphy Television, and 20th Television. 9-1-1's first season premiered on January 3, 2018 Due...

3.2.1. is the debut album by the rock band Zilch, released on July 23, 1998. It is their only work with original frontman hide, due to his death two months...

The Lion King 1½ (known internationally as The Lion King 3: Hakuna Matata) is a 2004 American animated direct-to-video musical comedy film directed by...

76.2% of all cases. In October 2022, two BA.5 subvariants were found: BQ.1 (or B.1.1.529.5.3.1.1.1.1.1) and BQ.1.1 (or B.1.1.529.5.3.1.1.1.1.1.1). The...

The 12-3 incident (Chinese: 一二·三事件; Portuguese: Motim 1-2-3) was a series of political demonstrations and riots against Portuguese colonial rule in Macau...