# A120644 (b-file synthesized from sequence entry) 1 12 2 60 3 120 4 168 5 420 6 420 7 360 8 1260 9 660 10 1848 11 1008 12 2640 13 2772 14 1092 15 3120 16 4680 17 1980 18 5460 19 1680 20 5148 21 9240 22 3432 23 2448 24 7140 25 11220 26 14280 27 8580 28 3420 29 15912 30 10032 31 15960 32 5460 33 20748 34 15708 35 23940 36 4620 37 13260 38 21840 39 25080 40 8160 41 23712