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A284365 as a simple table

na(n)
12
24
36
49
511
613
716
818
920
1023
1125
1227
1329
1431
1533
1636
1738
1840
1943
2045
2147
2250
2352
2454
2556
2658
2760
2863
2965
3067
3170
3272
3374
3477
3579
3681
3783
3885
3987
4090
4192
4294
4397
4499
45101
46104
47106
48108
49111
50113
51115
52118
53120
54122
55125
56127
57129
58131
59133
60135
61138

[2,4,6,9,11,13,16,18,20,23,25,27,29,31,33,36,38,
 40,43,45,47,50,52,54,56,58,60,63,65,67,70,72,74,
 77,79,81,83,85,87,90,92,94,97,99,101,104,106,108,
 111,113,115,118,120,122,125,127,129,131,133,135,
 138]