A068031 Number of subsets of {1,2,3,...,n} that sum to 0 mod 10.

1, 1, 1, 1, 2, 4, 7, 13, 26, 52, 104, 206, 410, 820, 1640, 3280, 6556, 13108, 26216, 52432, 104864, 209720, 419432, 838864, 1677728, 3355456, 6710896, 13421776, 26843552, 53687104, 107374208, 214748384, 429496736, 858993472, 1717986944