# A126384 (b-file synthesized from sequence entry) 0 1 1 30 2 88 3 260 4 770 5 2284 6 6782 7 20154 8 59928 9 178284 10 530606 11 1579726 12 4704572 13 14014274 14 41756092 15 124439108 16 370913490 17 1105756236 18 3296937150 19 9831523710 20 29321421468 21 87457888182 22 260890934448 23 778326317088