# A074623 (b-file synthesized from sequence entry)
0 2
1 16
2 130
3 1072
4 8962
5 75856
6 649090
7 5606512
8 48811522
9 427774096
10 3769259650
11 33358386352
12 296270823682
13 2638754838736
14 23555015527810
15 210638693604592
16 1886253119421442
17 16909812213653776
18 151723048894909570