# A007081 (b-file synthesized from sequence entry)
1 1
2 1
3 3
4 15
5 219
6 7839
7 777069
8 208836207
9 156458382975
10 328208016021561
11 1946879656265710431
12 32834193098697741359313
13 1582809785794578499063205301
14 218989607557709869788340418432175
15 87269441106898007902526099850864517077