# A099934 (b-file synthesized from sequence entry) 0 1 1 2 2 4 3 11 4 41 5 195 6 1130 7 7716 8 60599 9 537676 10 5316162 11 57940107 12 689965123 13 8911606493 14 124072525780 15 1852176280208 16 29510747957549 17 499830538998126 18 8967438954008720 19 169881509587167555