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A256045 as a simple table

na(n)
12
23
31
47
57
68
711
85
971
103
1126
129
13679
1477
1552
1641
1713
18769
19281
2017753
2129
2297
2347
243713
254271
26726433
27434657
28272
29153
3017
318449
322245
3333507
34167089
3546069729
36901
37362
38123
3981767
408569
4124852386
42265721
438118481057
44190818387
4573124
46571
4789
4893127
4918061
5020721019
514213133
524974089647
531031151241
541234496016491
5589893

[2,3,1,7,7,8,11,5,71,3,26,9,679,77,52,41,13,769,
 281,17753,29,97,47,3713,4271,726433,434657,272,
 153,17,8449,2245,33507,167089,46069729,901,362,
 123,81767,8569,24852386,265721,8118481057,
 190818387,73124,571,89,93127,18061,20721019,
 4213133,4974089647,1031151241,1234496016491,89893]