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A261628 as a simple table

na(n)
10
20
30
40
53
60
75
82
93
102
117
123
137
142
153
162
177
183
1913
202
213
225
237
243
257
262
275
285
2913
307
3113
325
335
342
357
363
377
385
393
402
4113
423
4331
442
453
4617
477
483
4913
502
5111
525
537
547
5513
562
575
5811
5913
607
6119
625
635
642
657
663
677
6811
693
702
7113
7213
737
7417
755
762
777
783
7919
805

[0,0,0,0,3,0,5,2,3,2,7,3,7,2,3,2,7,3,13,2,3,5,7,3,
 7,2,5,5,13,7,13,5,5,2,7,3,7,5,3,2,13,3,31,2,3,17,
 7,3,13,2,11,5,7,7,13,2,5,11,13,7,19,5,5,2,7,3,7,
 11,3,2,13,13,7,17,5,2,7,3,19,5]