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A248963 as a simple table

na(n)
11
27
39
411
513
616
719
823
925
1029
1131
1232
1337
1443
1547
1653
1761
1867
1973
2079
2181
2283
2397
24103
25107
26109
27113
28121
29127
30128
31137
32139
33149
34151
35157
36163
37179
38181
39191
40193
41197
42199
43211
44223
45227
46229
47233
48239
49241
50243
51251
52257
53263
54269
55271
56277
57281
58283
59307
60311
61313
62317
63331

[1,7,9,11,13,16,19,23,25,29,31,32,37,43,47,53,61,
 67,73,79,81,83,97,103,107,109,113,121,127,128,137,
 139,149,151,157,163,179,181,191,193,197,199,211,
 223,227,229,233,239,241,243,251,257,263,269,271,
 277,281,283,307,311,313,317,331]