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A174883 as a simple table

na(n)
11
21
31
43
55
61
713
821
917
1055
1189
129
13233
14377
15305
16987
171597
18323
194181
206765
215473
2217711
2328657
241449
2575025
26121393
2798209
28317811
29514229
30104005
311346269
322178309
331762289
345702887
359227465
36933147
3724157817
3839088169
3931622993

[1,1,1,3,5,1,13,21,17,55,89,9,233,377,305,987,
 1597,323,4181,6765,5473,17711,28657,1449,75025,
 121393,98209,317811,514229,104005,1346269,2178309,
 1762289,5702887,9227465,933147,24157817,39088169,
 31622993]