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A061820 as a simple table

na(n)
00
14
212
320
424
532
640
744
8100
9104
10112
11120
12124
13132
14140
15144
16200
17204
18212
19220
20224
21232
22240
23244
24300
25304
26312
27320
28324
29332
30340
31344
32400
33404
34412
35420
36424
37432
38440
39444
401000
411004
421012
431020
441024
451032
461040
471044
481100
491104
501112

[0,4,12,20,24,32,40,44,100,104,112,120,124,132,
 140,144,200,204,212,220,224,232,240,244,300,304,
 312,320,324,332,340,344,400,404,412,420,424,432,
 440,444,1000,1004,1012,1020,1024,1032,1040,1044,
 1100,1104,1112]