OFFSET
1,2
LINKS
Ray Chandler, Table of n, a(n) for n = 1..10000
Dario A. Alpern, Quadratic two integer variable equation solver
EXAMPLE
7 is in the sequence because, for instance, (167^3-166^3)/7 = 11881 = 109^2.
MATHEMATICA
A004611=Select[Range[500], And@@(Mod[#, 3]==1&)/@(First/@FactorInteger[#])&]; Select[A004611, Reduce[x^2+3== 12*#*y^2, {x, y}, Integers]=!=False &] (* Ray Chandler, Jul 24 2016 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Colin Barker, Jul 13 2016
EXTENSIONS
More terms using solver at Alpern link by Ray Chandler, Jul 23 2016
STATUS
approved