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A203462
Numbers n such that n!! contains every digit at least once.
0
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
1,1
EXAMPLE
34 is in the sequence because 34!! = 46620662575398912000 contains every digit at least once.
MATHEMATICA
Select[Range[101], Length[Union[IntegerDigits[#!!]]] == 10 &]
CROSSREFS
Sequence in context: A318148 A271984 A254756 * A270311 A257315 A045561
KEYWORD
nonn,base
AUTHOR
Michel Lagneau, Jan 02 2012
STATUS
approved