# A125793 (b-file synthesized from sequence entry)
0 1
1 4
2 16
3 84
4 656
5 8148
6 167568
7 5866452
8 356855440
9 38315189204
10 7352635371152
11 2547660633170900
12 1607532367023451792
13 1860491404939092059092
14 3974085151281967171382928
15 15751822048486986712162264020