# A221075 (b-file synthesized from sequence entry) 0 2 1 12 2 1 3 24 4 1 5 192 6 1 7 360 8 1 9 2700 10 1 11 5040 12 1 13 37632 14 1 15 70224 16 1 17 524172 18 1 19 978120 20 1 21 7300800 22 1 23 13623480 24 1 25 101687052 26 1 27 189750624 28 1 29 1416317952 30 1 31 2642885280 32 1 33 19726764300 34 1 35 36810643320 36 1