# A363380 (b-file synthesized from sequence entry) 0 1 1 2 2 20 3 284 4 4712 5 85392 6 1638112 7 32699472 8 672188768 9 14133399744 10 302535052160 11 6570819330688 12 144442463464704 13 3207564324825600 14 71848240540852224 15 1621452789508328704 16 36831997860270007808 17 841470878382566444032