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A120837 as a simple table

na(n)
11
23
35
42
57
69
711
813
94
1015
1117
1219
1321
1423
1525
166
1727
1829
1931
2035
2133
2237
2339
2441
258
2643
2745
2847
2949
3051
3153
3255
3357
3459
3561
3610
3763
3865
3967
4069
4171
4273
4375
4477
4579
4681
4783
4887
4914
5085
5189
5291
5393
5495
5597
5699
57101
58103
59105
60107
61109
62111
63113
6412
65115
66117
67119
68121

[1,3,5,2,7,9,11,13,4,15,17,19,21,23,25,6,27,29,31,
 35,33,37,39,41,8,43,45,47,49,51,53,55,57,59,61,10,
 63,65,67,69,71,73,75,77,79,81,83,87,14,85,89,91,
 93,95,97,99,101,103,105,107,109,111,113,12,115,
 117,119,121]