# A089471 (b-file synthesized from sequence entry) 0 1 1 2 2 9 3 66 4 680 5 9054 6 147811 7 2855574 8 63656423 9 1607072112 10 45294892304 11 1409197189256 12 47954491442089 13 1771493331491354 14 70590010219153189 15 3017771375030039066 16 137763757493141082536 17 6688261925293875095950