# A373872 (b-file synthesized from sequence entry)
0 0
1 1
2 0
3 1
4 15
5 391
6 16275
7 999391
8 85314915
9 9682617631
10 1411532175075
11 257220473522431
12 57317980108103715
13 15338554965273810271
14 4855172557420679314275
15 1794588990417909081447871
16 766066194581899382513514915
17 374061220058388896558805473311