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A007515 as a simple table

na(n)
00
13
23
32
42
53
613
71
8174
91
101
111
122
132
142
151
161
171
182
192
201
215
226
231
241
2573
261
274
282
293
308
311
3215
331
341
354
365
371
381
393
402
411
422
432
445
452
461
473
481
491
501
513
521
535
541
553
561
572
581
592
601
612
6234
631
641
655
661
672
687
692
701
712
724
731
741
7523
7615
772
781
792
803
811
821
837
841
853
862
871
888
893
902
911
921
938
9493
951
968
973

[0,3,3,2,2,3,13,1,174,1,1,1,2,2,2,1,1,1,2,2,1,5,6,
 1,1,73,1,4,2,3,8,1,15,1,1,4,5,1,1,3,2,1,2,2,5,2,1,
 3,1,1,1,3,1,5,1,3,1,2,1,2,1,2,34,1,1,5,1,2,7,2,1,
 2,4,1,1,23,15,2,1,2,3,1,1,7,1,3,2,1,8,3,2,1,1,8,
 93,1,8,3]