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A070406 as a simple table

na(n)
01
17
24
313
41
57
64
713
81
97
104
1113
121
137
144
1513
161
177
184
1913
201
217
224
2313
241
257
264
2713
281
297
304
3113
321
337
344
3513
361
377
384
3913
401
417
424
4313
441
457
464
4713
481
497
504
5113
521
537
544
5513
561
577
584
5913
601
617
624
6313
641
657
664
6713
681
697
704
7113
721
737
744
7513
761
777
784
7913
801
817
824
8313
841
857
864
8713
881
897
904
9113
921

[1,7,4,13,1,7,4,13,1,7,4,13,1,7,4,13,1,7,4,13,1,7,
 4,13,1,7,4,13,1,7,4,13,1,7,4,13,1,7,4,13,1,7,4,13,
 1,7,4,13,1,7,4,13,1,7,4,13,1,7,4,13,1,7,4,13,1,7,
 4,13,1,7,4,13,1,7,4,13,1,7,4,13,1,7,4,13,1,7,4,13,
 1,7,4,13,1]