id:A163060 - OEIS Search Results

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Sum_{x=nth non-twin prime..(n+1)th non-twin prime}-x*(-1)^x

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11, 30, 42, 50, 60, 73, 81, 86, 93, 105, 120, 129, 144, 160, 170, 192, 217, 228, 242, 254, 260, 285, 300, 312, 324, 334, 345, 356, 363, 370, 376, 381, 386, 393, 399, 405, 424, 441, 446, 453, 462, 473 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`a(1)=-2+3-4+5-6+7-8+9-10+11-12+13-14+15-16+17-18+19-20+21-22+23=11, a(2)=23-24+25-26+27-28+29-30+31-32+33-34+35-36+37=30.`
	CROSSREFS	`Cf. A007510.` `Sequence in context: A057739 A146751 A162734 this_sequence A051682 A109943 A137411` `Adjacent sequences: A163057 A163058 A163059 this_sequence A163061 A163062 A163063`
	KEYWORD	`nonn,uned`
	AUTHOR	`Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Jul 20 2009`

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

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