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A331948 as a simple table

na(n)
12
23
37
413
519
631
779
8151
9211
10331
11499
12631
13751
14991
151171
162011
172311
182671
193019
203931
214159
224951
235119
246451
257459
2610651
2718379
2832971
2948799
3061051
3178439
3284319
33162451
34199411
35230239
36257371
37404251
38462331
39529699
40584791
41640819

[2,3,7,13,19,31,79,151,211,331,499,631,751,991,
 1171,2011,2311,2671,3019,3931,4159,4951,5119,6451,
 7459,10651,18379,32971,48799,61051,78439,84319,
 162451,199411,230239,257371,404251,462331,529699,
 584791,640819]