# A155265 (b-file synthesized from sequence entry)
4 1
5 13
6 37
7 73
8 333
9 3889
10 39159
11 271617
12 3012146
13 61623325
14 1541710905
15 35611299121
16 1059291769629
17 47181801621713
18 2749984961944969