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A225554 as a simple table

na(n)
33
45
57
68
710
811
913
1014
1116
1218
1319
1421
1523
1625
1726
1828
1930
2032
2134
2235
2337
2439
2541
2643
2744
2846
2948
3050
3152
3253
3355
3457
3559
3661
3763
3864
3966
4068

[3,5,7,8,10,11,13,14,16,18,19,21,23,25,26,28,30,
 32,34,35,37,39,41,43,44,46,48,50,52,53,55,57,59,
 61,63,64,66,68]