# A156570 (b-file synthesized from sequence entry)
1 17
2 65
3 373
4 2173
5 12665
6 73817
7 430237
8 2507605
9 14615393
10 85184753
11 496493125
12 2893773997
13 16866150857
14 98303131145
15 572952636013
16 3339412684933
17 19463523473585
18 113441728156577
19 661186845465877
20 3853679344638685