# A038308 (b-file synthesized from sequence entry) 0 1 1 10 2 6 3 100 4 120 5 36 6 1000 7 1800 8 1080 9 216 10 10000 11 24000 12 21600 13 8640 14 1296 15 100000 16 300000 17 360000 18 216000 19 64800 20 7776 21 1000000 22 3600000 23 5400000 24 4320000 25 1944000 26 466560 27 46656 28 10000000 29 42000000 30 75600000 31 75600000