# A007986 (b-file synthesized from sequence entry)
1 2
2 12
3 242
4 2772
5 29282
6 320892
7 3543122
8 38987652
9 428717762
10 4715748972
11 51874849202
12 570624951732
13 6276856753442
14 69045406572252
15 759499667166482
16 8354496533703012
17 91899459727144322
18 1010894054854998732
19 11119834626984462962