# A244624 (b-file synthesized from sequence entry) 0 1 1 2 2 4 3 9 4 14 5 34 6 61 7 120 8 215 9 690 10 1144 11 2584 12 5626 13 13709 14 31275 15 63461 16 145767 17 340332 18 649190 19 1703684 20 4218462 21 10675070 22 22892978