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A274827 as a simple table

na(n)
11
23
32
49
511
63
77
815
947
1053
1155
1229
1316
1467
1523
1671
1777
1879
1941
2022
2115
2231
2395
24193
25199
26211
27217
28229
29235
301657
311699
321727
331811
349139
359559
363233
379839
3810049
3910189
403443
413583
423611
433751
443821
453961
4611953
4712023
4812233
4912653
5012863
5113003

[1,3,2,9,11,3,7,15,47,53,55,29,16,67,23,71,77,79,
 41,22,15,31,95,193,199,211,217,229,235,1657,1699,
 1727,1811,9139,9559,3233,9839,10049,10189,3443,
 3583,3611,3751,3821,3961,11953,12023,12233,12653,
 12863,13003]