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  2. Pell number - Wikipedia

    en.wikipedia.org/wiki/Pell_number

    This sequence of approximations begins ⁠ 1 / 1 ⁠, ⁠ 3 / 2 ⁠, ⁠ 7 / 5 ⁠, ⁠ 17 / 12 ⁠, and ⁠ 41 / 29 ⁠, so the sequence of Pell numbers begins with 1, 2, 5, 12, and 29. The numerators of the same sequence of approximations are half the companion Pell numbers or Pell–Lucas numbers ; these numbers form a second infinite ...

  3. Quintuple meter - Wikipedia

    en.wikipedia.org/wiki/Quintuple_meter

    4 and one pair of 5 4 + 6 4, ending with twelve bars of 6 4; 5 4 alternates regularly with 6 4 throughout (effectively 11 4) regular alternation of 5 4 and 6 4 until the final two bars, which are 5 4 and C; irregular mixture of 5 4, 6 4, and 7 4, with a single 3 4 bar at the end; four pairs of regularly alternating 5 4 and 6 4, then an ...

  4. List of integer sequences - Wikipedia

    en.wikipedia.org/wiki/List_of_integer_sequences

    1, 1, 2, 2, 4, 2, 6, 4, 6, 4, ... φ(n) is the number of positive integers not greater than n that are coprime with n. A000010: Lucas numbers L(n) 2, 1, 3, 4, 7, 11, 18, 29, 47, 76, ... L(n) = L(n − 1) + L(n − 2) for n ≥ 2, with L(0) = 2 and L(1) = 1. A000032: Prime numbers p n: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, ... The prime numbers p ...

  5. Numeral prefix - Wikipedia

    en.wikipedia.org/wiki/Numeral_prefix

    For the hundreds, there are competing forms: Those in -gent-, from the original Latin, and those in -cent-, derived from centi-, etc. plus the prefixes for 1 through 9 . Many of the items in the following tables are not in general use, but may rather be regarded as coinages by individuals.

  6. Mathematical coincidence - Wikipedia

    en.wikipedia.org/wiki/Mathematical_coincidence

    A mathematical coincidence is said to occur when two expressions with no direct relationship show a near-equality which has no apparent theoretical explanation.. For example, there is a near-equality close to the round number 1000 between powers of 2 and powers of 10:

  7. Connect Four - Wikipedia

    en.wikipedia.org/wiki/Connect_Four

    The most commonly-used Connect Four board size is 7 columns × 6 rows. Size variations include 5×4, 6×5, 8×7, 9×7, 10×7, 8×8, Infinite Connect-Four, [20] and Cylinder-Infinite Connect-Four. [21] Several versions of Hasbro's Connect Four physical gameboard make it easy to remove game pieces from the bottom one at a time.

  8. “You Can’t Make This Up”: 30 Retail Workers Recall Their ...

    www.aol.com/50-retail-workers-share-t-090028086.html

    Image credits: VonYellow To find out how this conversation started in the first place, we reached out to Reddit user Professional_Song419, who invited retail workers to share their "you can't make ...

  9. 10, 9, 8, 7, 6, 5, 4, 3, 2, 1 - Wikipedia

    en.wikipedia.org/wiki/10,_9,_8,_7,_6,_5,_4,_3,_2,_1

    10, 9, 8, 7, 6, 5, 4, 3, 2, 1 is the fourth studio album by Midnight Oil, released in 1982 by Columbia Records. It hit number 3 on the Australian Kent Music Report Albums Chart during 171 total weeks. [1] The band's first US release, it peaked at number 178 on the Billboard 200. At the Countdown Music Awards, it was nominated for Best ...