A203462 Numbers n such that n!! contains every digit at least once.
34, 35, 37, 41, 47, 48, 49, 51, 53, 54, 55, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108
Offset: 1
Examples
34 is in the sequence because 34!! = 46620662575398912000 contains every digit at least once.
Programs
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Mathematica
Select[Range[101], Length[Union[IntegerDigits[#!!]]] == 10 &]