# A063253 (b-file synthesized from sequence entry) 1 1 2 2 3 3 4 5 5 10 6 23 7 42 8 110 9 286 10 749 11 2059 12 7097 13 19279 14 68211 15 246724 16 885790 17 3234668 18 14549030 19 53401041 20 240993489 21 1111160746 22 5080272010 23 23413163247 24 129102470025 25 599218203979 26 3297343887195 27 18468781315851 28 102681863426893 29 573393298022342