# A108991 (b-file synthesized from sequence entry)
0 1
1 1
2 3
3 22
4 287
5 5496
6 139727
7 4447234
8 170501039
9 7661336692
10 395314147319
11 23054541596934
12 1500572569678932
13 107886158725753318
14 8494969789519239340
15 727287072573544716489
16 67284371697225428990319