# A020726 (b-file synthesized from sequence entry) 0 1 1 27 2 493 3 7599 4 106645 5 1411431 6 17955757 7 222093423 8 2690508229 9 32080473975 10 377794514461 11 4405195463487 12 50953884924853 13 585473143132359 14 6690087028209805 15 76090252032830991 16 861988540696279717