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A163980 as a simple table

na(n)
11
25
35
49
59
613
713
817
917
1021
1121
1225
1325
1429
1529
1633
1733
1837
1937
2041
2141
2245
2345
2449
2549
2653
2753
2857
2957
3061
3161
3265
3365
3469
3569
3673
3773
3877
3977
4081
4181
4285
4385
4489
4589
4693
4793
4897
4997
50101
51101
52105
53105
54109
55109
56113
57113
58117
59117
60121
61121
62125
63125
64129
65129
66133

[1,5,5,9,9,13,13,17,17,21,21,25,25,29,29,33,33,37,
 37,41,41,45,45,49,49,53,53,57,57,61,61,65,65,69,
 69,73,73,77,77,81,81,85,85,89,89,93,93,97,97,101,
 101,105,105,109,109,113,113,117,117,121,121,125,
 125,129,129,133]