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A272207 as a simple table

na(n)
12
25
36
45
511
611
723
823
917
1023
1135
1235
1335
1453
1553
1659
1747
1859
1965
2083
2171
2271
2377
2495
2595
2695
2789
28113
29107
30119
31125
32131
33119
34143
35155
36131
37179
38173
39149
40179
41191
42191
43203
44167
45179
46191
47227
48233
49233
50215
51239
52263
53227
54251
55263
56281
57251
58251
59251
60275

[2,5,6,5,11,11,23,23,17,23,35,35,35,53,53,59,47,
 59,65,83,71,71,77,95,95,95,89,113,107,119,125,131,
 119,143,155,131,179,173,149,179,191,191,203,167,
 179,191,227,233,233,215,239,263,227,251,263,281,
 251,251,251,275]