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A022839 as a simple table

na(n)
12
24
36
48
511
613
715
817
920
1022
1124
1226
1329
1431
1533
1635
1738
1840
1942
2044
2146
2249
2351
2453
2555
2658
2760
2862
2964
3067
3169
3271
3373
3476
3578
3680
3782
3884
3987
4089
4191
4293
4396
4498
45100
46102
47105
48107
49109
50111
51114
52116
53118
54120
55122
56125
57127
58129
59131
60134
61136

[2,4,6,8,11,13,15,17,20,22,24,26,29,31,33,35,38,
 40,42,44,46,49,51,53,55,58,60,62,64,67,69,71,73,
 76,78,80,82,84,87,89,91,93,96,98,100,102,105,107,
 109,111,114,116,118,120,122,125,127,129,131,134,
 136]