# A368934 (b-file synthesized from sequence entry)
0 1
1 3
2 16
3 104
4 751
5 5789
6 46656
7 388377
8 3313304
9 28816513
10 254548840
11 2277498340
12 20596833817
13 187974816142
14 1729033498416
15 16012809644088
16 149186508912927
17 1397300099214753
18 13149137686976324
19 124262625068365924
20 1178796712807563025