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A127044
Squares of denominators of Sum_{k=1..p-1} 1/k^2 for p in A127042.
6
1, 2, 12, 60, 720720, 12252240, 80313433200, 2329089562800, 144403552893600, 5342931457063200, 718766754945489455304472257065075294400, 52573842877942565273243107104095419458814459401768000
OFFSET
1,2
LINKS
MATHEMATICA
a = {}; Do[If[Sqrt[Denominator[Sum[1/x^2, {x, 1, Prime[x] - 1}]]] == Floor[Sqrt[Denominator[Sum[1/x^2, {x, 1, Prime[x] - 1}]]]], AppendTo[a, Sqrt[Denominator[Sum[1/x^2, {x, 1, Prime[x] - 1}]]]]], {x, 1, 50}]; a
CROSSREFS
KEYWORD
nonn
AUTHOR
Artur Jasinski, Jan 03 2007
STATUS
approved