# A373286 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 1 5 16 6 48 7 64 8 16 9 784 10 233280 11 291600 12 20736 13 167961600 14 281014272 15 74649600 16 1679616 17 3229640294400 18 2472693350400 19 511642685030400 20 2751882854400 21 4854321355161600 22 2085841207296000000 23 216982220508758016 24 15850845241344 25 25975097361564696576