A019591 - OEIS

A019591

Grundy function of game in which each player has to divide precisely one set of coins into two subsets of different sizes.

0, 0, 1, 0, 2, 1, 0, 2, 3, 0, 1, 4, 0, 2, 4, 0, 2, 3, 0, 1, 4, 0, 2, 4, 0, 2, 6, 0, 1, 3, 0, 2, 5, 0, 2, 6, 0, 1, 8, 0, 2, 3, 0, 2, 6, 0, 1, 4, 0, 2, 4, 0, 2, 3, 0, 1, 4, 0, 2, 8, 0, 2, 8, 0, 1, 3, 0, 2, 5, 0, 2, 7, 0, 1, 8, 0, 2, 3, 0, 2, 8, 0, 1, 4, 0, 2, 4, 0, 2, 3, 0, 1, 4, 0, 2, 8, 0, 2, 6