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A249304 as a simple table

na(n)
00
10
21
31
43
55
65
73
87
913
1013
1111
1213
1315
1413
157
1615
1729
1829
1927
2029
2131
2229
2323
2429
2539
2637
2731
2833
2935
3029
3115
3231
3361
3461
3559
3661
3763
3861
3955
4061
4171
4269
4363
4465
4567
4661
4747
4861
4987
5085
5179
5281
5383
5477
5563
5673
5791
5885
5971
6073
6175
6261
6331
6463
65125
66125

[0,0,1,1,3,5,5,3,7,13,13,11,13,15,13,7,15,29,29,
 27,29,31,29,23,29,39,37,31,33,35,29,15,31,61,61,
 59,61,63,61,55,61,71,69,63,65,67,61,47,61,87,85,
 79,81,83,77,63,73,91,85,71,73,75,61,31,63,125,125]