A119261 Numbers with even decimal digits in decreasing order.
0, 2, 4, 6, 8, 20, 40, 42, 60, 62, 64, 80, 82, 84, 86, 420, 620, 640, 642, 820, 840, 842, 860, 862, 864, 6420, 8420, 8620, 8640, 8642, 86420
Offset: 1
Programs
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Mathematica
Sort@Flatten@Table[FromDigits/@Subsets[Range[8,0,-2],{n}],{n,5}]
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