# A046252 (b-file synthesized from sequence entry)
0 0
1 1
2 8
3 64
4 512
5 4096
6 11543176
7 13997521
8 738763264
9 5910106112
10 38477541376
11 47280848896
12 2462562648064
13 19700501184512
14 129754026714376
15 131491746445051
16 157604009476096
17 8304257709720064
18 66434061677760512