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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 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

MATHEMATICA

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

CROSSREFS

Cf. A088033.

Sequence in context: A032488 A102844 A097543 * A161959 A096516 A024869

Adjacent sequences:  A088031 A088032 A088033 * A088035 A088036 A088037

KEYWORD

nonn

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Sep 19 2003

EXTENSIONS

More terms from Ray Chandler (rayjchandler(AT)sbcglobal.net), Sep 23 2003

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Last modified February 13 21:55 EST 2012. Contains 205561 sequences.