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A238477 as a simple table

na(n)
15
237
369
4101
5133
6165
7197
8229
9261
10293
11325
12357
13389
14421
15453
16485
17517
18549
19581
20613
21645
22677
23709
24741
25773
26805
27837
28869
29901
30933
31965
32997
331029
341061
351093
361125
371157
381189
391221
401253
411285
421317
431349
441381
451413
461445

[5,37,69,101,133,165,197,229,261,293,325,357,389,
 421,453,485,517,549,581,613,645,677,709,741,773,
 805,837,869,901,933,965,997,1029,1061,1093,1125,
 1157,1189,1221,1253,1285,1317,1349,1381,1413,1445]