# A226476 (b-file synthesized from sequence entry) 1 1 2 6 3 24 4 28 5 120 6 496 7 672 8 2016 9 4320 10 4680 11 8128 12 8190 13 26208 14 30240 15 32760 16 42336 17 45864 18 392448 19 523776 20 714240 21 1571328 22 2178540 23 8910720 24 17428320 25 20427264 26 23569920 27 29795040 28 33550336 29 34369920 30 45532800 31 61900800