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A024807 as a simple table

na(n)
12
24
36
48
510
612
714
817
918
1020
1122
1225
1326
1428
1529
1632
1734
1835
1938
2040
2142
2243
2345
2447
2549
2652
2754
2856
2957
3058
3160
3262
3364
3466
3568
3669
3772
3874
3975
4077
4180
4283
4385
4486
4589
4691
4794
4896
4999
50101
51104
52106
53107
54109
55111
56113
57116
58118
59119
60122
61124
62125
63127
64129
65131
66133
67135

[2,4,6,8,10,12,14,17,18,20,22,25,26,28,29,32,34,
 35,38,40,42,43,45,47,49,52,54,56,57,58,60,62,64,
 66,68,69,72,74,75,77,80,83,85,86,89,91,94,96,99,
 101,104,106,107,109,111,113,116,118,119,122,124,
 125,127,129,131,133,135]