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A146743 as a simple table

na(n)
11
21
31
41
51
61
713
829
957
10123
11437
121523
137643
1432273
15153925
16786845
175340469
1836899655
19318800081
202591600741
2126626203639
22272703572385

[1,1,1,1,1,1,13,29,57,123,437,1523,7643,32273,
 153925,786845,5340469,36899655,318800081,
 2591600741,26626203639,272703572385]