# A094346 (b-file synthesized from sequence entry) 0 1 1 0 2 1 3 0 4 1 5 2 6 0 7 3 8 8 9 6 10 0 11 17 12 54 13 60 14 24 15 0 16 155 17 556 18 762 19 480 20 120 21 0 22 2073 23 8146 24 12840 25 10248 26 4200 27 720 28 0 29 38227 30 161424 31 282078 32 263040 33 139440 34 40320 35 5040 36 0 37 929569 38 4163438 39 7886580 40 8240952 41 5170800 42 1965600 43 423360 44 40320