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A193868 as a simple table

na(n)
12
24
316
422
546
656
792
8106
9154
10172
11232
12254
13326
14352
15436
16466
17562
18596
19704
20742
21862
22904
231036
241082
251226
261276
271432
281486
291654
301712
311892
321954
332146
342212
352416
362486
372702
382776
393004
403082
413322
423404
433656
443742
454006
464096
474372

[2,4,16,22,46,56,92,106,154,172,232,254,326,352,
 436,466,562,596,704,742,862,904,1036,1082,1226,
 1276,1432,1486,1654,1712,1892,1954,2146,2212,2416,
 2486,2702,2776,3004,3082,3322,3404,3656,3742,4006,
 4096,4372]