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A356665 as a simple table

na(n)
21
33
45
57
610
710
810
910
1012
1111
1213
1313
1415
1516
1616
1717
1818
1918
2019
2120
2222
2324
2425
2525
2626
2728
2830
2931
3031
3133
3234
3335
3438
3540
3641
3741
3842
3943
4045
4146
4246
4347
4448
4550
4651
4752
4852
4954
5055
5156
5256
5357
5457
5559
5660
5760
5861
5961
6062
6161
6263
6365
6464

[1,3,5,7,10,10,10,10,12,11,13,13,15,16,16,17,18,
 18,19,20,22,24,25,25,26,28,30,31,31,33,34,35,38,
 40,41,41,42,43,45,46,46,47,48,50,51,52,52,54,55,
 56,56,57,57,59,60,60,61,61,62,61,63,65,64]