# A215328 (b-file synthesized from sequence entry) 0 1 1 3 2 2 3 5 4 10 5 24 6 49 7 112 8 240 9 534 10 1175 11 2626 12 5848 13 13153 14 29594 15 66955 16 151814 17 345494 18 788049 19 1802675 20 4132469 21 9495242 22 21859912 23 50423465 24 116511119 25 269666586 26 625101288 27 1451128164 28 3373250909 29 7851415835