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A031399 as a simple table

na(n)
14
28
316
420
525
632
734
840
952
1064
1168
1280
13100
14104
15116
16128
17136
18146
19148
20160
21164
22169
23178
24194
25200
26205
27208
28212
29221
30232
31244
32256
33260
34272
35289
36292
37296
38305
39320
40328
41340
42356
43377
44386
45388
46400
47404
48410
49416
50424
51436
52452

[4,8,16,20,25,32,34,40,52,64,68,80,100,104,116,
 128,136,146,148,160,164,169,178,194,200,205,208,
 212,221,232,244,256,260,272,289,292,296,305,320,
 328,340,356,377,386,388,400,404,410,416,424,436,
 452]