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A121875 as a simple table

na(n)
11
22
33
43
57
613
75
817
943
1089
118
1241
13142
14377
15836
1613
1799
18469
191597
204341
2110063
2221
23239
241549
256765
2622541
2762011
28148149
2934
30577
315116
3228657
33117046
34382129
351057792
362581921
3755
381393
3916897
40121393
41607771
422354785
437552693
4420973217

[1,2,3,3,7,13,5,17,43,89,8,41,142,377,836,13,99,
 469,1597,4341,10063,21,239,1549,6765,22541,62011,
 148149,34,577,5116,28657,117046,382129,1057792,
 2581921,55,1393,16897,121393,607771,2354785,
 7552693,20973217]