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A280844 as a simple table

na(n)
00
10
20
34
416
520
616
736
856
960
1072
1176
1280
13100
14112
15100
16136
17124
18152
19172
20192
21196
22224
23196
24232
25236
26264
27252
28288
29276
30288
31308
32344
33332
34344
35332
36384
37388
38416
39404
40456
41428
42456
43444
44496
45468
46512
47468
48536
49556
50648

[0,0,0,4,16,20,16,36,56,60,72,76,80,100,112,100,
 136,124,152,172,192,196,224,196,232,236,264,252,
 288,276,288,308,344,332,344,332,384,388,416,404,
 456,428,456,444,496,468,512,468,536,556,648]