A088034 Even numbers k such that k^2-1 is divisible by a square > 1.

8, 10, 24, 26, 28, 44, 46, 48, 50, 62, 64, 74, 76, 80, 82, 98, 100, 116, 118, 120, 122, 124, 126, 134, 136, 146, 148, 152, 154, 168, 170, 172, 174, 176, 188, 190, 206, 208, 224, 226, 242, 244, 246, 260, 262, 274, 276, 278, 280, 288, 290, 296, 298, 314, 316, 324

Offset: 1

Author

Amarnath Murthy, Sep 19 2003

Keywords

• nonn

Crossrefs

Intersection of A005843 and A173186.

Cf. A088033.

Programs

Mathematica

Select[Range[2,400,2],!SquareFreeQ[#^2-1]&] (* Harvey P. Dale, Jan 15 2012 *)

Extensions

More terms from Ray Chandler, Sep 23 2003

Offset changed by Andrew Howroyd, Sep 22 2024