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A265228 as a simple table

na(n)
00
11
22
33
44
57
66
79
88
911
1010
1115
1212
1317
1414
1519
1616
1723
1818
1925
2020
2127
2222
2331
2424
2533
2626
2735
2828
2939
3030
3141
3232
3343
3434
3547
3636
3749
3838
3951
4040
4155
4242
4357
4444
4559
4646
4763
4848
4965
5050
5167
5252
5371
5454
5573
5656
5775
5858
5979
6060
6181
6262
6383
6464
6587
6666

[0,1,2,3,4,7,6,9,8,11,10,15,12,17,14,19,16,23,18,
 25,20,27,22,31,24,33,26,35,28,39,30,41,32,43,34,
 47,36,49,38,51,40,55,42,57,44,59,46,63,48,65,50,
 67,52,71,54,73,56,75,58,79,60,81,62,83,64,87,66]