id:A119973 - OEIS Search Results

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A119973

Numbers of the form (4k+1)*2^j which are not a sum of two squares.

+0
2

21, 33, 42, 57, 66, 69, 77, 84, 93, 105, 114, 129, 132, 133, 138, 141, 154, 161, 165, 168, 177, 186, 189, 201, 209, 210, 213, 217, 228, 237, 249, 253, 258, 264, 266, 273, 276, 282, 285, 297, 301, 308, 309, 321, 322, 329, 330, 336, 341, 345, 354, 357, 372 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`42 is there because it's (45+1)2^1 and is not a sum of two squares.`
	CROSSREFS	`Cf. A001481, A084109, A091072, A120772.` `Sequence in context: A035137 A075110 A036382 this_sequence A141249 A026068 A070006` `Adjacent sequences: A119970 A119971 A119972 this_sequence A119974 A119975 A119976`
	KEYWORD	`easy,nonn`
	AUTHOR	`Alford Arnold (Alford1940(AT)aol.com), Jun 03 2006`
	EXTENSIONS	`More terms from Don Reble (djr(AT)nk.ca), Jul 24 2006`

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

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