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A257883 as a simple table

na(n)
10
21
33
42
55
69
74
810
96
1011
118
1215
137
1416
1514
1622
1712
1823
1917
2027
2113
2225
2318
2431
2519
2633
2720
2835
2924
3040
3121
3238
3329
3447
3526
3645
3728
3848
3930
4051
4136
4258
4332
4455
4539
4663
4734
4859
4937
5064
5141
5267
5342
5470
5543
5672
5744
5874
5950
6081
6146
6278
63111
6449
6583
6652
6787

[0,1,3,2,5,9,4,10,6,11,8,15,7,16,14,22,12,23,17,
 27,13,25,18,31,19,33,20,35,24,40,21,38,29,47,26,
 45,28,48,30,51,36,58,32,55,39,63,34,59,37,64,41,
 67,42,70,43,72,44,74,50,81,46,78,111,49,83,52,87]