# A130477 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 1 4 2 5 3 6 1 7 3 8 8 9 12 10 1 11 4 12 15 13 40 14 60 15 1 16 5 17 24 18 90 19 240 20 360 21 1 22 6 23 35 24 168 25 630 26 1680 27 2520 28 1 29 7 30 48 31 280 32 1344 33 5040 34 13440 35 20160 36 1 37 8 38 63 39 432 40 2520 41 12096 42 45360 43 120960 44 181440 45 1 46 9 47 80 48 630 49 4320 50 25200 51 120960 52 453600 53 1209600 54 1814400 55 1 56 10 57 99 58 880 59 6930 60 47520 61 277200 62 1330560 63 4989600 64 13305600 65 19958400