id:A138393 - OEIS Search Results

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Numbers of form 8k+1 which are not squares.

+0
2

17, 33, 41, 57, 65, 73, 89, 97, 105, 113, 129, 137, 145, 153, 161, 177, 185, 193, 201, 209, 217, 233, 241, 249, 257, 265, 273, 281, 297, 305, 313, 321, 329, 337, 345, 353, 369, 377, 385, 393, 401, 409, 417, 425, 433, 449, 457, 465, 473, 481, 489, 497, 505 (list; graph; listen)

	OFFSET	`1,1`
	MATHEMATICA	`a = {}; Do[If[Sqrt[8k + 1] == Floor[Sqrt[8k + 1]], [null], AppendTo[a, 8k + 1]], {k, 0, 100}]; a`
	CROSSREFS	`Cf. A004768, A017077.` `Sequence in context: A029817 A162504 A085255 this_sequence A044062 A044443 A158057` `Adjacent sequences: A138390 A138391 A138392 this_sequence A138394 A138395 A138396`
	KEYWORD	`nonn`
	AUTHOR	`Artur Jasinski (grafix(AT)csl.pl), Mar 18 2008`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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