# A021734 (b-file synthesized from sequence entry)
0 1
1 27
2 502
3 8022
4 118363
5 1663809
6 22644784
7 301210524
8 3938740405
9 50831269671
10 649205557546
11 8222000492706
12 103410878533327
13 1293146143620813
14 16092125344053988
15 199423591976817768