# A012586 (b-file synthesized from sequence entry) 1 1 2 2 3 3 4 12 5 93 6 670 7 5775 8 66360 9 866201 10 12368218 11 199321595 12 3586550660 13 70423787445 14 1499367858742 15 34522135846471 16 854378102311664 17 22596634681576113 18 636104718523145010 19 18994369965270547315