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  2. 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 ...

  3. Look-and-say sequence - Wikipedia

    en.wikipedia.org/wiki/Look-and-say_sequence

    1 is read off as "one 1" or 11. 11 is read off as "two 1s" or 21. 21 is read off as "one 2, one 1" or 1211. 1211 is read off as "one 1, one 2, two 1s" or 111221. 111221 is read off as "three 1s, two 2s, one 1" or 312211. The look-and-say sequence was analyzed by John Conway [1] after he was introduced to it by one of his students at a party. [2 ...

  4. 6-5=2 - Wikipedia

    en.wikipedia.org/wiki/6-5=2

    6-5=2 is a 2013 Kannada found footage horror film, written and directed by K S Ashoka in his directoral debut. It is the first found footage film in Kannada. [2] The plot revolves around a fatal trek accident. [3] The film was reported to have taken its inspiration from the 1999 American independent film The Blair Witch Project. [3]

  5. List of small groups - Wikipedia

    en.wikipedia.org/wiki/List_of_small_groups

    Z 10 = Z 5 × Z 2: Z 5, Z 2: Cyclic. Product. 11 19 G 11 1: Z 11 – Simple. Cyclic. ... those of order pq n where q n divides 2 8, 3 6, 5 5 or 7 4 and p is an ...

  6. Order of operations - Wikipedia

    en.wikipedia.org/wiki/Order_of_operations

    [2] [3] Thus, in the expression 1 + 2 × 3, the multiplication is performed before addition, and the expression has the value 1 + (2 × 3) = 7, and not (1 + 2) × 3 = 9. When exponents were introduced in the 16th and 17th centuries, they were given precedence over both addition and multiplication and placed as a superscript to the right of ...

  7. Linked list - Wikipedia

    en.wikipedia.org/wiki/Linked_list

    11 External links. Toggle the table of contents ... Next Prev Name Balance 0 1 4 Jones, John ... 234.56 2 (listHead) 41 Adams, Adam 0.00 3 Ignore, Ignatius 999.99 ...

  8. Fermat number - Wikipedia

    en.wikipedia.org/wiki/Fermat_number

    That 641 is a factor of F 5 can be deduced from the equalities 641 = 2 7 × 5 + 1 and 641 = 2 4 + 5 4. It follows from the first equality that 2 7 × 5 ≡ −1 (mod 641) and therefore (raising to the fourth power) that 2 28 × 5 41 (mod 641).

  9. Open Location Code - Wikipedia

    en.wikipedia.org/wiki/Open_Location_Code

    It has offsets 80° from the South Pole, and 280° from the anti-meridian; or, 4 (=80/20) and 14 (=280/20) as the first base-20 digits, coded as "6" and "P". Thus, the code is "6P". This may be padded as 6P000000+. Now, refine this block to a subblock between 1° and 2° N and 103° and 104° E. This adds 11° and 3° to the SW corner.