# A103197 (b-file synthesized from sequence entry) 1 1 2 2 3 4 4 7 5 12 6 21 7 37 8 65 9 115 10 208 11 386 12 727 13 1367 14 2536 15 4630 16 8376 17 15217 18 28170 19 53620 20 104843 21 208547 22 416448 23 824990 24 1608138 25 3071813 26 5747106 27 10561032 28 19177849 29 34734782 30 63495907 31 118601911 32 228454377 33 454988025 34 932297291