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  2. Lagrange's four-square theorem - Wikipedia

    en.wikipedia.org/wiki/Lagrange's_four-square_theorem

    It is sufficient to prove the theorem for every odd prime number p. This immediately follows from Euler's four-square identity (and from the fact that the theorem is true for the numbers 1 and 2). The residues of a 2 modulo p are distinct for every a between 0 and ( p − 1)/2 (inclusive).

  3. Composition (combinatorics) - Wikipedia

    en.wikipedia.org/wiki/Composition_(combinatorics)

    4 + 1; 3 + 2. Note that the ancient Sanskrit sages discovered many years before Fibonacci that the number of compositions of any natural number n as the sum of 1's and 2's is the nth Fibonacci number! Note that these are not general compositions as defined above because the numbers are restricted to 1's and 2's only. 1=1 (1) 2=1+1=2 (2)

  4. 4 mm - Wikipedia

    en.wikipedia.org/wiki/4_mm

    4 mm scale, in rail transport modelling, 1:76.2 scale with rails 16.5 mm apart, representing standard gauge in Britain Topics referred to by the same term This disambiguation page lists articles associated with the same title formed as a letter–number combination.

  5. Four fours - Wikipedia

    en.wikipedia.org/wiki/Four_fours

    For example, when d=4, the hash table for two occurrences of d would contain the key-value pair 8 and 4+4, and the one for three occurrences, the key-value pair 2 and (4+4)/4 (strings shown in bold). The task is then reduced to recursively computing these hash tables for increasing n , starting from n=1 and continuing up to e.g. n=4.

  6. Coin problem - Wikipedia

    en.wikipedia.org/wiki/Coin_problem

    For example, if you had two types of coins valued at 6 cents and 14 cents, the GCD would equal 2, and there would be no way to combine any number of such coins to produce a sum which was an odd number; additionally, even numbers 2, 4, 8, 10, 16 and 22 (less than m=24) could not be formed, either.

  7. The Real Reason Why Hoda Kotb Is Leaving the Today Show - AOL

    www.aol.com/lifestyle/real-reason-why-hoda-kotb...

    Today's Macy's Thanksgiving Day Parade may be Hoda Kotb's last time hosting. In September, she announced she would be stepping down from the Today show in January 2025.. After celebrating her 60th ...

  8. Argument over anime ends with dead crocodile and jail for ...

    www.aol.com/argument-over-anime-ends-dead...

    Tyler, 33, threw Rickey’s pet alligator and Rickey, 30, launched Tyler’s crocodile from their Wasilla apartment, Alaska News Source reports. It is not clear what anime kicked off the dispute.

  9. Wynonna Judd's Daughter Grace Kelley Back in Jail After She ...

    www.aol.com/wynonna-judds-daughter-grace-kelley...

    Related: Wynonna Judd's Daughter Grace Kelley Arrested for Second Time This Year on 3 New Charges He added: "We want the community to know that on a personal level, we have forgiven Grace Kelley ...