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A249916 as a simple table

na(n)
01
11
25
37
411
511
613
713
817
919
1023
1123
1225
1325
1429
1531
1635
1735
1837
1937
2041
2143
2247
2347
2449
2549
2653
2755
2859
2959
3061
3161
3265
3367
3471
3571
3673
3773
3877
3979
4083
4183
4285
4385
4489
4591
4695
4795
4897
4997
50101
51103
52107
53107
54109
55109
56113
57115
58119
59119
60121
61121
62125
63127

[1,1,5,7,11,11,13,13,17,19,23,23,25,25,29,31,35,
 35,37,37,41,43,47,47,49,49,53,55,59,59,61,61,65,
 67,71,71,73,73,77,79,83,83,85,85,89,91,95,95,97,
 97,101,103,107,107,109,109,113,115,119,119,121,
 121,125,127]