# A116772 (b-file synthesized from sequence entry) 1 1 2 2 3 6 4 21 5 76 6 278 7 1021 8 3756 9 13827 10 50916 11 187512 12 690593 13 2543444 14 9367525 15 34500756 16 127067006 17 467990629 18 1723620240 19 6348133335 20 23380322908 21 86110274536 22 317146150489 23 1168056674504 24 4301979997337 25 15844292751908