# A146159 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 1 5 7 6 15 7 60 8 184 9 747 10 3499 11 25726 12 170389 13 1816278 14 17509129 15 246038108 16 3281197739 17 66149680918 18 1268005261759 19 37496297507935 20 1034674372954972 21 43395951886928470