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A279161 as a simple table

na(n)
31
41
53
61
74
82
94
102
117
121
139
143
154
164
1712
182
1913
203
217
225
2317
242
2514
266
2712
285
2921
301
3123
329
3312
348
3516
364
3727
389
3915
407
4131
422
4332
4410
4514
4612
4735
485
4931
509
5120
5212
5340
546
5528
5611
5723
5815
5945
603
6146
6216
6322
6418
6534
665
6751
6817
6929
708
7154
728
7356
7420
7523
7619

[1,1,3,1,4,2,4,2,7,1,9,3,4,4,12,2,13,3,7,5,17,2,
 14,6,12,5,21,1,23,9,12,8,16,4,27,9,15,7,31,2,32,
 10,14,12,35,5,31,9,20,12,40,6,28,11,23,15,45,3,46,
 16,22,18,34,5,51,17,29,8,54,8,56,20,23,19]