# A150261 (b-file synthesized from sequence entry) 0 1 1 2 2 6 3 22 4 87 5 360 6 1539 7 6656 8 29519 9 131997 10 599591 11 2742867 12 12663920 13 58792883 14 274700270 15 1288694040 16 6076057801 17 28734777315 18 136432700264 19 649355428719 20 3100237524391 21 14831679544010 22 71131351004963 23 341724857266355 24 1645043242447743 25 7930615784450314 26 38298338467995971 27 185178317686261648