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A269600 as a simple table

na(n)
12
29
360
4572
57030
6105892
71886252
838768412
9902743646
1023482784400
11674804472216
1221227322458468
13725465523386294
1426765145874993234
151060182321437102136
1644874027105660248520
172021234030434596074938

[2,9,60,572,7030,105892,1886252,38768412,
 902743646,23482784400,674804472216,21227322458468,
 725465523386294,26765145874993234,
 1060182321437102136,44874027105660248520,
 2021234030434596074938]