# A327079 (b-file synthesized from sequence entry) 0 0 1 0 2 1 3 0 4 12 5 180 6 4200 7 157920 8 9673664 9 1011129840 10 190600639200 11 67674822473280 12 46325637863907072 13 61746583700640860736 14 161051184122415878112640 15 824849999242893693424992000 16 8317799170120961768715123118080