# A012993 (b-file synthesized from sequence entry) 0 2 1 15 2 721 3 84049 4 18372769 5 6443708601 6 3315504514305 7 2351891535306609 8 2200048869778398657 9 2623946039095984617321 10 3886333930223496753553953 11 6998154777889427559892675041