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A147747 as a simple table

na(n)
01
11
21
32
43
51
65
79
85
91
1014
1128
1220
137
141
1541
1689
1775
1835
199
201
21122
22285
23273
24154
2554
2611
271
28365
29913
30974
31634
32273
3377
3413
351
361094
372918
383420
392502
401256
41440
42104
4315
441
453281
469297
4711850
489578
495439
502239
51663
52135
5317
541

[1,1,1,2,3,1,5,9,5,1,14,28,20,7,1,41,89,75,35,9,1,
 122,285,273,154,54,11,1,365,913,974,634,273,77,13,
 1,1094,2918,3420,2502,1256,440,104,15,1,3281,9297,
 11850,9578,5439,2239,663,135,17,1]