# A059369 (b-file synthesized from sequence entry) 1 1 2 1 3 2 4 1 5 4 6 6 7 1 8 6 9 16 10 24 11 1 12 8 13 30 14 72 15 120 16 1 17 10 18 48 19 152 20 372 21 720 22 1 23 12 24 70 25 272 26 828 27 2208 28 5040 29 1 30 14 31 96 32 440 33 1576 34 4968 35 14976 36 40320 37 1 38 16 39 126 40 664 41 2720 42 9696 43 33192 44 115200 45 362880 46 1 47 18 48 160 49 952 50 4380 51 17312 52 64704 53 247968 54 996480