# A009699 (b-file synthesized from sequence entry)
0 0
1 2
2 20
3 518
4 27432
5 2405194
6 312554428
7 56240197198
8 13369846932560
9 4056020122211730
10 1528702557462347620
11 700644649971815625622
12 383722595185095053746040
13 247477546043660240025524954