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A113648 as a simple table

na(n)
11
23
36
41
53
65
77
89
912
1015
1118
1221
1324
1427
1530
161
173
185
197
209
2111
2213
2315
2417
2519
2621
2723
2825
2927
3029
3131
3233
3336
3439
3542
3645
3748
3851
3954
4057
4160
4263
4366
4469
4572
4675
4778
4881
4984
5087
5190
5293
5396
5499
55102
56105
57108
58111
59114
60117
61120
62123
63126
641
653
665
677

[1,3,6,1,3,5,7,9,12,15,18,21,24,27,30,1,3,5,7,9,
 11,13,15,17,19,21,23,25,27,29,31,33,36,39,42,45,
 48,51,54,57,60,63,66,69,72,75,78,81,84,87,90,93,
 96,99,102,105,108,111,114,117,120,123,126,1,3,5,7]