# A348009 (b-file synthesized from sequence entry) 0 1 1 2 2 4 3 10 4 22 5 52 6 118 7 282 8 646 9 1544 10 3576 11 8546 12 19924 13 47612 14 111536 15 266488 16 626520 17 1496670 18 3528470 19 8427952 20 19913078 21 47559756 22 112572916 23 268857568 24 637327742 25 1522153378 26 3612811784 27 8629110414 28 20503211908 29 48975965026 30 116478744692