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A057975 as a simple table

na(n)
02
14
28
316
428
534
640
744
848
954
1070
1186
12104
13112
14148
15160
16202
17204
18234
19272
20286
21312
22324
23366
24418
25474
26518
27530
28540
29564
30608
31678
32706
33748
34816
35902
36996
371100
381106
391220
401266
411302
421320
431418
441422
451456
461574
471736
481764
491816
501838
511862

[2,4,8,16,28,34,40,44,48,54,70,86,104,112,148,160,
 202,204,234,272,286,312,324,366,418,474,518,530,
 540,564,608,678,706,748,816,902,996,1100,1106,
 1220,1266,1302,1320,1418,1422,1456,1574,1736,1764,
 1816,1838,1862]