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A055926 as a simple table

na(n)
112
236
360
484
5108
6120
7132
8156
9180
10204
11228
12240
13252
14276
15300
16324
17348
18360
19372
20396
21420
22444
23468
24480
25492
26516
27540
28564
29588
30600
31612
32636
33660
34684
35708
36732
37756
38780
39804
40828
41840
42852
43876
44900
45924
46948
47960
48972
49996
501020
511044
521068

[12,36,60,84,108,120,132,156,180,204,228,240,252,
 276,300,324,348,360,372,396,420,444,468,480,492,
 516,540,564,588,600,612,636,660,684,708,732,756,
 780,804,828,840,852,876,900,924,948,960,972,996,
 1020,1044,1068]