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A214918 as a simple table

na(n)
21
31
42
51
64
73
82
94
108
113
1210
136
144
157
1614
175
1816
199
206
2110
2220
237
2414
2512
268
2713
2826
299
3028
3115
3210
3316
3420
3511
3634
3718
3812
3919
4038
4113
4240
4321
4414
4522
4644
4715
4834
4924
5016
5125
5250
5317
5432
5527
5618
5728
5856
5919
6058
6130
6220
6331
6438
6521
6664
6733
6822
6934
7068
7123
7270
7336

[1,1,2,1,4,3,2,4,8,3,10,6,4,7,14,5,16,9,6,10,20,7,
 14,12,8,13,26,9,28,15,10,16,20,11,34,18,12,19,38,
 13,40,21,14,22,44,15,34,24,16,25,50,17,32,27,18,
 28,56,19,58,30,20,31,38,21,64,33,22,34,68,23,70,
 36]