# A064087 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 41
4 413
5 4641
6 55797
7 702297
8 9137549
9 121909457
10 1658755685
11 22929591433
12 321111942781
13 4546112358529
14 64958195967957
15 935566629270201
16 13567825195172973
17 197957440018622769
18 2903721563443327557
19 42796201522669935081
20 633443408407612143453