id:A090612 - OEIS Search Results

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n-th prime is of the form 2*k^2+1.

+0
5

2, 8, 21, 38, 153, 191, 232, 279, 327, 378, 493, 559, 1086, 1272, 1360, 1769, 1989, 2111, 2224, 2344, 2471, 3272, 3721, 3863, 4838, 5006, 5359, 6291, 6871, 7077, 7909, 8127, 9245, 9928, 10654, 10889, 12164, 12957, 13764, 14881, 16034, 16343, 16944 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`A090698 indexed by A000040.`
	FORMULA	`a(n)=k such that A000040(k)=A090698(n)=2*A089001(n)^2+1.`
	CROSSREFS	`Cf. A089001, A089008, A090698.` `Sequence in context: A001471 A162585 A000159 this_sequence A051744 A062443 A141582` `Adjacent sequences: A090609 A090610 A090611 this_sequence A090613 A090614 A090615`
	KEYWORD	`nonn`
	AUTHOR	`Ray Chandler (rayjchandler(AT)sbcglobal.net), Dec 21 2003`

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

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