# A226594 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 1 4 2 5 3 6 6 7 11 8 22 9 42 10 102 11 204 12 488 13 1078 14 2723 15 6403 16 16479 17 40313 18 106135 19 271295 20 724455