# A109525 (b-file synthesized from sequence entry) 0 0 1 2 2 2 3 4 4 4 5 9 6 16 7 31 8 56 9 109 10 209 11 403 12 773 13 1491 14 2873 15 5538 16 10671 17 20570 18 39649 19 76426 20 147312 21 283954 22 547338 23 1055028 24 2033628 25 3919945 26 7555936 27 14564535 28 28074040 29 54114453 30 104308961 31 201061987 32 387559437 33 747044835 34 1439975217