# A206637 (b-file synthesized from sequence entry) 0 1 1 2 2 10 3 50 4 266 5 1466 6 8370 7 49090 8 294458 9 1798794 10 11156074 11 70069514 12 444822530 13 2849764698 14 18401517066 15 119640989514 16 782575127258 17 5146252178882 18 34003440381186 19 225635772455882 20 1503017848153914 21 10046960505610082 22 67372689978768714 23 453099298491559554