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A247451 as a simple table

na(n)
11
22
32
46
52
66
72
86
930
102
116
126
1330
142
156
166
1730
182
196
2030
216
22210
236
2430
252
266
2730
286
29210
306
3130
322
336
3430
356
36210
376
3830
3930
402
4130
426
43210
446
4530
466
47210
486
4930
5030
512
5230
536
542310
55210
566
5730
586
59210
606
6130
6230
632
6430
656
662310
67210
686
6930
7030
716

[1,2,2,6,2,6,2,6,30,2,6,6,30,2,6,6,30,2,6,30,6,
 210,6,30,2,6,30,6,210,6,30,2,6,30,6,210,6,30,30,2,
 30,6,210,6,30,6,210,6,30,30,2,30,6,2310,210,6,30,
 6,210,6,30,30,2,30,6,2310,210,6,30,30,6]