# A219220 (b-file synthesized from sequence entry) 0 1 1 1 2 6 3 91 4 2306 5 86576 6 4570570 7 333164243 8 33547502582 9 4704103190166 10 925622587155708 11 256758944391842662 12 100693326907873920440 13 55964816627849652514434 14 44167198051129910003931850 15 49561249392391287991062025027 16 79164926515567602205248823277126