OFFSET
0,1
COMMENTS
All terms of the sequence must be part of a Pythagorean triple of the form (2u-1), 2u*(u-1), (2u^2 - 2u + 1). - Joshua Zucker, May 11 2006
LINKS
Harvey P. Dale, Table of n, a(n) for n = 0..1000
MATHEMATICA
Select[Table[{2n-1, 2n(n-1), 2n^2-2n+1}, {n, 20000}], AllTrue[{#[[1]], #[[3]]}, PrimeQ]&&AnyTrue[#[[1]]+{2, -2}, PrimeQ]&&AnyTrue[#[[3]]+{2, -2}, PrimeQ]&][[All, 1]] (* Harvey P. Dale, Oct 11 2021 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Stuart M. Ellerstein (ellerstein(AT)aol.com)
EXTENSIONS
More terms from Joshua Zucker, May 11 2006
STATUS
approved