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A047671 as a simple table

na(n)
11
21
31
41
54
61
71
87
97
101
111
1210
1319
1410
151
161
1713
1837
1937
2013
211
221
2316
2461
2594
2661
2716
281
291
3019
3191
32193
33193
3491
3519
361
371
3822
39127
40346
41481
42346
43127
4422
451
461
4725
48169
49565
501021
511021
52565
53169
5425
551
561
5728
58217
59862
601933
612524
621933
63862

[1,1,1,1,4,1,1,7,7,1,1,10,19,10,1,1,13,37,37,13,1,
 1,16,61,94,61,16,1,1,19,91,193,193,91,19,1,1,22,
 127,346,481,346,127,22,1,1,25,169,565,1021,1021,
 565,169,25,1,1,28,217,862,1933,2524,1933,862]