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A023983 as a simple table

na(n)
13
26
38
410
512
614
719
817
918
1021
1124
1224
1329
1427
1529
1627
1731
1829
1933
2035
2137
2239
2341
2440
2540
2645
2745
2843
2948
3048
3154
3246
3348
3451
3552
3651
3756
3857
3959
4058
4157
4260
4361
4462
4565
4664
4769
4863
4968
5066
5169
5274
5376
5474
5578
5675
5776
5881
5982
6081
6185
6287
6383
6477
6581
6682
6784
6881
6987
7086
7193
7287
7391
7492
7593
7696

[3,6,8,10,12,14,19,17,18,21,24,24,29,27,29,27,31,
 29,33,35,37,39,41,40,40,45,45,43,48,48,54,46,48,
 51,52,51,56,57,59,58,57,60,61,62,65,64,69,63,68,
 66,69,74,76,74,78,75,76,81,82,81,85,87,83,77,81,
 82,84,81,87,86,93,87,91,92,93,96]