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A269612 as a simple table

na(n)
12
29
364
4612
57440
6110099
71923796
838800210
9887591878
1022714070251
11643030722208
1219954247152834
13673552866591198
1424570545121277999
15963253518328620796
1640387590591059009524
171803427358679591518028

[2,9,64,612,7440,110099,1923796,38800210,
 887591878,22714070251,643030722208,19954247152834,
 673552866591198,24570545121277999,
 963253518328620796,40387590591059009524,
 1803427358679591518028]