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A137905 as a simple table

na(n)
13
24
35
47
58
69
711
812
913
1014
1116
1217
1318
1419
1522
1623
1724
1825
1926
2027
2129
2230
2331
2432
2533
2634
2737
2838
2939
3040
3141
3242
3343
3444
3546
3647
3748
3849
3950
4051
4152
4253
4354
4457
4558
4659
4760
4861
4962
5063
5164
5265
5367
5468
5569
5671
5772
5873
5974
6075
6176
6277
6379
6480
6581
6682
6783
6885
6986
7087
7188

[3,4,5,7,8,9,11,12,13,14,16,17,18,19,22,23,24,25,
 26,27,29,30,31,32,33,34,37,38,39,40,41,42,43,44,
 46,47,48,49,50,51,52,53,54,57,58,59,60,61,62,63,
 64,65,67,68,69,71,72,73,74,75,76,77,79,80,81,82,
 83,85,86,87,88]