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A040748 as a simple table

na(n)
027
11
25
31
454
51
65
71
854
91
105
111
1254
131
145
151
1654
171
185
191
2054
211
225
231
2454
251
265
271
2854
291
305
311
3254
331
345
351
3654
371
385
391
4054
411
425
431
4454
451
465
471
4854
491
505
511
5254
531
545
551
5654
571
585
591
6054
611
625
631
6454
651
665
671
6854
691
705
711
7254
731
745
751
7654
771
785
791
8054
811
825
831

[27,1,5,1,54,1,5,1,54,1,5,1,54,1,5,1,54,1,5,1,54,
 1,5,1,54,1,5,1,54,1,5,1,54,1,5,1,54,1,5,1,54,1,5,
 1,54,1,5,1,54,1,5,1,54,1,5,1,54,1,5,1,54,1,5,1,54,
 1,5,1,54,1,5,1,54,1,5,1,54,1,5,1,54,1,5,1]