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A121047 as a simple table

na(n)
01
11
23
35
47
513
613
715
817
917
1021
1123
1225
1337
1427
1529
1637
1753
1867
1971
2061
2167
2243
2361
2451
2557
2677
2753
2873
29101
3091
3191
3281
3367
3469
3573
3673
3775
3877
3981
4081
41121
4283
43137
44119
4589
4699
4795
4895
49127
50151
51101
52181
53161
54169
55227
56181
57179
58217
59193
60153
61121
62123
63127
64159

[1,1,3,5,7,13,13,15,17,17,21,23,25,37,27,29,37,53,
 67,71,61,67,43,61,51,57,77,53,73,101,91,91,81,67,
 69,73,73,75,77,81,81,121,83,137,119,89,99,95,95,
 127,151,101,181,161,169,227,181,179,217,193,153,
 121,123,127,159]