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A315931 as a simple table

na(n)
01
16
28
316
418
526
630
730
844
944
1046
1156
1258
1366
1466
1572
1684
1782
1886
1992
20102
21106
22100
23114
24124
25122
26124
27130
28144
29144
30140
31152
32164
33164
34158
35172
36186
37180
38180
39190
40206
41204
42194
43212
44226
45222
46216
47228
48250
49240

[1,6,8,16,18,26,30,30,44,44,46,56,58,66,66,72,84,
 82,86,92,102,106,100,114,124,122,124,130,144,144,
 140,152,164,164,158,172,186,180,180,190,206,204,
 194,212,226,222,216,228,250,240]