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A253906 as a simple table

na(n)
11
26
320
434
540
644
746
856
9102
10116
11120
12170
13174
14196
15200
16204
17220
18226
19232
20234
21252
22260
23262
24294
25296
26320
27334
28336
29344
30346
31358
32360
33382
34386
35392
36412
37426
38464
39476
40482
41490
42494
43514
44520
45526
46536
47556
48564
49582
50586
51592
52646
53658
54716

[1,6,20,34,40,44,46,56,102,116,120,170,174,196,
 200,204,220,226,232,234,252,260,262,294,296,320,
 334,336,344,346,358,360,382,386,392,412,426,464,
 476,482,490,494,514,520,526,536,556,564,582,586,
 592,646,658,716]