300 (number) and strictly non-palindromic number. 361 = 19, centered triangular number, centered octagonal number, centered decagonal number, member of the Mian–Chowla sequence; also the number of positions on a standard 19 x 19 Go board. The Bahá'í calendar is based on 19 months of 19 days each. 362 = 2 × 181, Mertens function returns 0, nontotient, noncototient. 363 = 3 × 11, sum of nine consecutive primes (23 + 29 + 31 + 37 + 41 + 43 + 47 + 53 + 59), Mertens function returns 0, perfect totient number. 364 = 2 × 7 × 13, tetrahedral number,
Chess on a Really Big Board same as 16×16×16 chess). Betza's comment was: Similarly, he considered a 64×64×64 3D variant, which he put forward as a possible world record for the largest chess variant (having 262144 cubes), although he did not completely specify the rules, beyond stating that the standard opening setup for orthodox chess would simply be repeated to fill the 64×64 boards. Chess on a Really Big Board Chess on a Really Big Board is a large chess variant invented by Ralph Betza around 1996. It is played on a 16×16 chessboard with 16 pieces (on the back rank) and 16 pawns (on the