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A277691 as a simple table

na(n)
21
312
4710
5267
6159
7164
876
990
1016285
112168
123832
137773
1429849
1534731
161496
1723485
1851130
1917658
2038908
2138639
22270845
23450432
2457050
25145850
26631632
27240947
28398108
29306349
30288481
31410531
321516421
332621329
34781173
35333140
362997665
37948049
38593835
391506645
401216039

[1,12,710,267,159,164,76,90,16285,2168,3832,7773,
 29849,34731,1496,23485,51130,17658,38908,38639,
 270845,450432,57050,145850,631632,240947,398108,
 306349,288481,410531,1516421,2621329,781173,
 333140,2997665,948049,593835,1506645,1216039]