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A255972 as a simple table

na(n)
11
22
33
45
54
68
732
815
96
1010
1125
1212
137
1418
1517
1621
1734
1824
199
2031
2122
2235
2327
2428
2551
2640
2733
2843
2911
3046
3175
3252
3341
3457
3538
3660
3723
3848
3936
4062
4113
4265
43138
4474
4544
4667
4729
4869
4961
5076
5149
5283
5314
5486
5555
5671
5753
5826
5942
6080
6116
6293
6358
6498
6568
6690

[1,2,3,5,4,8,32,15,6,10,25,12,7,18,17,21,34,24,9,
 31,22,35,27,28,51,40,33,43,11,46,75,52,41,57,38,
 60,23,48,36,62,13,65,138,74,44,67,29,69,61,76,49,
 83,14,86,55,71,53,26,42,80,16,93,58,98,68,90]