# A321966 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 2 4 5 5 1 6 6 7 27 8 12 9 1 10 24 11 168 12 123 13 22 14 1 15 120 16 1200 17 1275 18 365 19 35 20 1 21 720 22 9720 23 13950 24 5655 25 855 26 51 27 1 28 5040 29 88200 30 163170 31 87465 32 18480 33 1722 34 70 35 1 36 40320 37 887040 38 2046240 39 1387680 40 383145 41 49476 42 3122 43 92 44 1