# A005866 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 2 9 2 10 2 11 2 12 4 13 4 14 8 15 16 16 32 17 36 18 64 19 128 20 256 21 512 22 1024 23 2048 24 4096