# A057910 (b-file synthesized from sequence entry) 1 2 2 4 3 6 4 10 5 12 6 13 7 19 8 43 9 48 10 64 11 72 12 97 13 187 14 190 15 336 16 348 17 676 18 2484 19 2719 20 3298 21 4726 22 9901 23 24466