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A137912 as a simple table

na(n)
11
22
33
44
55
64
76
87
98
105
119
1210
1311
145
1512
1613
1714
187
1916
2017
2118
228
2319
246
2520
2621
2722
289
2923
3024
3125
3226
3327
346
3528
3629
377
3830
3931
4011
4132
4233
4334
4435
4536
4612
4737
4838
4939
5040
5141
528
5313
5442
5543
5644
5745
5846
5947
6014
6148
6249
6350
647
6551
6652
6715
6853
6954
7055
719
7256
7357
7458
7516
7659
7760

[1,2,3,4,5,4,6,7,8,5,9,10,11,5,12,13,14,7,16,17,
 18,8,19,6,20,21,22,9,23,24,25,26,27,6,28,29,7,30,
 31,11,32,33,34,35,36,12,37,38,39,40,41,8,13,42,43,
 44,45,46,47,14,48,49,50,7,51,52,15,53,54,55,9,56,
 57,58,16,59,60]