# A038495 (b-file synthesized from sequence entry) 0 0 1 1 2 1 3 2 4 3 5 5 6 8 7 14 8 24 9 43 10 77 11 140 12 256 13 472 14 874 15 1628 16 3045 17 5719 18 10780 19 20388