# A165323 (b-file synthesized from sequence entry)
0 1
1 8
2 72
3 712
4 7496
5 81864
6 911944
7 10263752
8 116119368
9 1317149128
10 14959895624
11 170020681416
12 1932918264136
13 21978286879688
14 249924108049992
15 2842099476549832
16 32320548186147656
17 367554952665320904