# A174188 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 1 4 28 5 1 6 1 7 532 8 532 9 1 10 1 11 21280 12 404320 13 21280 14 1 15 1 16 516040 17 392190400 18 392190400 19 516040 20 1 21 1 22 15997240 23 294829133200 24 11793165328000 25 294829133200 26 15997240 27 1 28 1 29 427715680 30 244366799454400 31 237035795470768000