# A112294 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 18
4 121
5 1055
6 11376
7 145852
8 2165689
9 36532197
10 689873284
11 14415662558
12 330204013569
13 8226714806323
14 221470234531456
15 6406397898751320
16 198160750081637521
17 6526636388676159977
18 228040136335670652324