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A392406 as a simple table

na(n)
16
25
35
47
59
613
715
817
919
1021
1123
1225
1327
1429
1531
1633
1735
1837
1939
2042
2145
2248
2351
2454
2557
2660
2763
2866
2969
3072
3175
3278
3381
3484
3587

[6,5,5,7,9,13,15,17,19,21,23,25,27,29,31,33,35,37,
 39,42,45,48,51,54,57,60,63,66,69,72,75,78,81,84,
 87]