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A045772 as a simple table

na(n)
01
12
22
33
42
53
64
76
85
94
107
119
125
137
1410
159
1611
173
186
1912
2011
214
223
232
2414
255
2612
274
2814
299
3018
3123
3217
335
3424
358
3612
3725
3828
3911
4026
4119
4218
4327
4436
4518
465
479
4834
4922
5032
5126
529
5317
5429
5523
5612
5743
586
5947
6038
6116
6232
6316
6445
6516
6630
6743
6812
6957
7037
7129
7228
7326
7415
756
7624
7744

[1,2,2,3,2,3,4,6,5,4,7,9,5,7,10,9,11,3,6,12,11,4,
 3,2,14,5,12,4,14,9,18,23,17,5,24,8,12,25,28,11,26,
 19,18,27,36,18,5,9,34,22,32,26,9,17,29,23,12,43,6,
 47,38,16,32,16,45,16,30,43,12,57,37,29,28,26,15,6,
 24,44]