# A010357 (b-file synthesized from sequence entry) 1 1 2 1 3 2 4 3 5 6 6 14 7 32 8 90 9 279 10 942 11 3468 12 13777 13 57747 14 254671 15 1170565 16 5580706 17 27487418 18 139477796 19 727458338 20 3893078684 21 21346838204 22 119787629215 23 687200870250