# A164909 (b-file synthesized from sequence entry)
0 1
1 19
2 342
3 6156
4 110808
5 1994544
6 35901792
7 646232256
8 11632180437
9 209379244788
10 3768826350951
11 67838873322924
12 1221099701917140
13 21979794312389664
14 395636291824874544
15 7121453148481232448