# A118787 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 2 4 3 5 5 6 6 7 12 8 23 9 41 10 24 11 60 12 130 13 255 14 469 15 120 16 360 17 870 18 1860 19 3679 20 6889 21 720 22 2520 23 6720 24 15540 25 32858 26 65247 27 123605 28 5040 29 20160 30 58800 31 146160 32 328734 33 689388 34 1371887 35 2620169 36 40320 37 181440 38 574560 39 1527120 40 3638376 41 8029980