# A080767 (b-file synthesized from sequence entry) 0 1 1 3 2 12 3 20 4 220 5 144 6 240 7 5060 8 5520 9 5520 10 10800 11 11520 12 8928 13 15120 14 31680 15 33984 16 56576 17 60372 18 39168 19 65280 20 80640 21 149760 22 149760 23 169920 24 281600 25 398200 26 664092 27 669600 28 940896 29 1235520