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A256531 as a simple table

na(n)
00
11
28
312
428
512
636
760
868
912
1036
1160
1284
13108
14132
15156
16148
1712
1836
1960
2084
21108
22132
23156
24180
25204
26228
27252
28276
29300
30324
31348
32308
3312
3436
3560
3684
37108
38132
39156
40180
41204
42228
43252
44276
45300
46324
47348
48372
49396
50420
51444
52468
53492
54516
55540
56564
57588
58612
59636
60660
61684
62708
63732
64628
6512
6636
6760
6884
69108

[0,1,8,12,28,12,36,60,68,12,36,60,84,108,132,156,
 148,12,36,60,84,108,132,156,180,204,228,252,276,
 300,324,348,308,12,36,60,84,108,132,156,180,204,
 228,252,276,300,324,348,372,396,420,444,468,492,
 516,540,564,588,612,636,660,684,708,732,628,12,36,
 60,84,108]