# A065526 (b-file synthesized from sequence entry)
0 4
1 20
2 159
3 1581
4 16558
5 177149
6 1914605
7 20805629
8 226837179
9 2478392741
10 27117710875
11 297017215757
12 3255654522710
13 35706184176828
14 391779075776400
15 4300227701910871
16 47213296523342317
17 518486398180399368
18 5694994070817964255
19 62563136744290538933