OFFSET
2,2
COMMENTS
The primes of the sequence are 3, 5, 137, 241, 479, 761, 1499, ...
The squares of the sequence are 1, 144, 225, 289, 324, ...
EXAMPLE
a(3)=3 because sqrt(A261655(3)/144) = sqrt(1296/144) = sqrt(9)=3.
MAPLE
q:=83:for n from 2 to 10^7 do:p:=n^2+2:if isprime(p) then x:=p-q:q:=p: z:=sqrt(x):if z=floor(z) then printf(`%d, `, x/144):else fi:fi:od:
CROSSREFS
KEYWORD
nonn
AUTHOR
Michel Lagneau, Aug 28 2015
STATUS
approved