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A061752
Positive integers k such that k! is divisible by (k+1)^4.
7
11, 23, 29, 31, 34, 35, 39, 41, 44, 47, 49, 53, 54, 55, 59, 62, 63, 64, 65, 69, 71, 74, 76, 77, 79, 80, 83, 84, 87, 89, 90, 94, 95, 97, 98, 99, 101, 103, 104, 107, 109, 111, 113, 114, 116, 118, 119, 120, 124, 125, 127, 129, 131, 132, 134, 135, 137, 139, 142, 143
OFFSET
1,1
LINKS
MATHEMATICA
Select[Range[150], IntegerQ[ #!/(# + 1)^4] &]
KEYWORD
nonn
AUTHOR
Robert G. Wilson v, Jun 21 2001
STATUS
approved