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A049879 as a simple table

na(n)
31
42
53
62
72
83
94
106
114
127
139
147
1510
1612
1712
1814
1912
2015
2117
2217
2319
2417
2520
2622
275
2826
2925
3019
3127
3216
3329
3413
3531
3633
3733
3831
398
406
4137
423
4339
4419
4540
4642
4742
4844
494
5046
516
5248
5348
548
5550
5611
5753
5853
5955
6053
6116
6258
6358
6417
6560
6619
6763
6823
6965
7025
7167
7211
7370
7470
7568
7633
7758
7835
7974

[1,2,3,2,2,3,4,6,4,7,9,7,10,12,12,14,12,15,17,17,
 19,17,20,22,5,26,25,19,27,16,29,13,31,33,33,31,8,
 6,37,3,39,19,40,42,42,44,4,46,6,48,48,8,50,11,53,
 53,55,53,16,58,58,17,60,19,63,23,65,25,67,11,70,
 70,68,33,58,35,74]