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A291690 as a simple table

na(n)
15
22
33
417
52
66
73
810
910
103
1113
1213
1312
145
155
162
172
182
197
2011
2128
226
236
247
257
2611
275
286
296
303
316
326
333
342
3512
366
3718
3820
395
402
412
4221
4319
445
453
463
473
485
496
506
5121
527
5314
546
555
567
5715
586
5911
603
613
625
6322
6417
6514
663
6729
6815
692
7013
7113
7219
736
742
7510
7610
7718
786
7921
8026

[5,2,3,17,2,6,3,10,10,3,13,13,12,5,5,2,2,2,7,11,
 28,6,6,7,7,11,5,6,6,3,6,6,3,2,12,6,18,20,5,2,2,21,
 19,5,3,3,3,5,6,6,21,7,14,6,5,7,15,6,11,3,3,5,22,
 17,14,3,29,15,2,13,13,19,6,2,10,10,18,6,21,26]