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A061838
Numbers k such that (k+3)^3 | k!.
5
9, 15, 17, 21, 24, 25, 27, 29, 32, 33, 37, 39, 41, 42, 45, 46, 47, 49, 51, 52, 53, 57, 60, 61, 62, 63, 65, 67, 69, 72, 73, 74, 75, 77, 78, 81, 82, 85, 87, 88, 89, 92, 93, 95, 96, 97, 99, 101, 102, 105, 107, 109, 111, 112, 113, 114, 116, 117, 118, 121, 122, 123, 125
OFFSET
1,1
LINKS
MATHEMATICA
Select[ Range[150], IntegerQ[ #! / (# + 3)^3] &]
CROSSREFS
KEYWORD
nonn
AUTHOR
Robert G. Wilson v, Jun 22 2001
STATUS
approved