# A288778 (b-file synthesized from sequence entry) 1 0 2 1 3 1 4 2 5 3 6 4 7 3 8 5 9 10 10 18 11 4 12 7 13 16 14 42 15 96 16 5 17 9 18 22 19 66 20 216 21 600 22 6 23 11 24 28 25 90 26 336 27 1320 28 4320 29 7 30 13 31 34 32 114 33 456 34 2040 35 9360 36 35280 37 8 38 15 39 40 40 138 41 576 42 2760 43 14400 44 75600 45 322560 46 9 47 17 48 46 49 162 50 696 51 3480 52 19440 53 115920 54 685440 55 3265920 56 10 57 19 58 52 59 186 60 816 61 4200 62 24480 63 156240 64 1048320 65 6894720 66 36288000