Squares k such that 2*k+1 is also a square.

A084703

Squares k such that 2*k+1 is also a square.

Terms

    a(0) =0a(1) =4a(2) =144a(3) =4900a(4) =166464a(5) =5654884a(6) =192099600a(7) =6525731524a(8) =221682772224

External references