1, 2, 4, 5, 10, 20, 51, 61, 102, 122, 204, 244, 305, 610, 1220, 13289, 26578, 53156, 66445, 132890, 265780, 808747, 1617494, 3234988, 4043735, 8087470, 16174940.
1, 2, 4, 5, 10, 20, 51, 61, 102, 122, 204, 244, 305, 610, 1220, 13289, 26578, 53156, 66445, 132890, 265780, 808747, 1617494, 3234988, 4043735, 8087470, 16174940.