1,2

If prime p has form 8*n+1, then n is a member.

Peter J. C. Moses, Table of n, a(n) for n = 1..5000

8k^2+8n+1 is perfect square.

Cf. A007519.

Sequence in context: A244749 A166087 A333545 * A153143 A075724 A049408

Adjacent sequences: A281899 A281900 A281901 * A281903 A281904 A281905

nonn

Vladimir Shevelev, Feb 01 2017

More terms from Peter J. C. Moses, Feb 01 2017

approved