# A064643 (b-file synthesized from sequence entry) 0 1 1 2 2 6 3 22 4 105 5 631 6 4603 7 39469 8 388870 9 4327322 10 53670985 11 734069672 12 10975379510 13 178080287645 14 3116286236549 15 58502460526469