OFFSET
1,1
COMMENTS
Subsequence of A293694.
LINKS
Chai Wah Wu, Table of n, a(n) for n = 1..10000
EXAMPLE
63^2 + 2^8 = 65^2 and gcd(63, 2, 65) = 1, 65 is a term.
24999999^2 + 10^8 = 25000001^2 and gcd(24999999, 10, 25000001) = 1, 25000001 is a term.
MATHEMATICA
z={}; Do[If[IntegerQ[(n^2 - y^8)^(1/2)] && GCD[y, n]==1, AppendTo[z, n]], {n, 5.1*10^7}, {y, (n^2 - 1)^(1/8)}]; z
CROSSREFS
KEYWORD
nonn
AUTHOR
XU Pingya, Oct 16 2017
STATUS
approved