OFFSET
1,2
COMMENTS
23 divides all terms except the first.
MATHEMATICA
a={}; Do[r=(24^n-1)/n^2; If[r==IntegerPart[r], AppendTo[a, n]], {n, 1, 10^3}]; a (* Vladimir Joseph Stephan Orlovsky, Aug 07 2008 *)
CROSSREFS
KEYWORD
nonn,less
AUTHOR
Alexander Adamchuk, Mar 01 2007
EXTENSIONS
a(5)-a(6) from Farideh Firoozbakht, Mar 05 2007
a(7)-a(10) from Ryan Propper, Feb 23 2008
Terms a(11) onward from Max Alekseyev, May 06 2010
STATUS
approved