Math Vacation

  An interesting variation of the Sisyphus Sequence, A350877 ,  is starting the sequence with 1008973 instead of 1. With most first terms, t...

Today's date, 9/16/2025, is Pythagorean Day because 9 - 16 - 25 are the squares of the sides of the 3 - 4 - 5 right-angle triangle. This...

  A388038 a(n) is the number of steps to reach 1 when the Sisyphus sequence ( A350877 ) begins with n, or -1 if 1 is never reached. 0 0, 1, ...

(Image:  Sisyphus (1548–49) by Titian, Prado Museum, Madrid, Spain ) Sisyphus, in Greek mythology , was cursed upon death to roll a large ...

Watch this animated short film from 1956, directed by Norman McLaren and Evelyn Lambart . https://www.youtube.com/watch? v=OBXKpEDhudU