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A061837
Numbers k such that (k+2)^2 | k!.
5
10, 13, 14, 16, 18, 19, 22, 23, 25, 26, 28, 30, 31, 33, 34, 37, 38, 40, 42, 43, 46, 47, 48, 49, 50, 52, 53, 54, 55, 58, 61, 62, 63, 64, 66, 67, 68, 70, 73, 74, 75, 76, 78, 79, 82, 83, 85, 86, 88, 89, 90, 91, 93, 94, 96, 97, 98, 100, 102, 103, 106, 108, 109, 110, 112, 113
OFFSET
1,1
LINKS
MATHEMATICA
Select[ Range[150], IntegerQ[ #! / (# + 2)^2] &]
CROSSREFS
KEYWORD
nonn
AUTHOR
Robert G. Wilson v, Jun 22 2001
STATUS
approved