id:A091277 - OEIS Search Results

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

+0
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3, 6, 13, 18, 30, 42, 65, 82, 112, 135, 170, 197, 212, 271, 284, 319, 353, 369, 445, 505, 612, 682, 933, 1069, 1193, 1226, 1286, 1510, 1609, 1676, 1711, 1789, 1900, 2161, 2241, 2285, 2363, 2450, 2667, 2712, 2924, 3247, 3644, 3894, 4000, 4100, 4367, 4647 (list; graph; listen)

	OFFSET	`0,1`
	COMMENT	`Also k-th prime is of the form (n^2+1)/2.`
	FORMULA	`a(n)=k such that A000040(k)=A027862(n).`
	CROSSREFS	`A027862 indexed by A000040. A027862 gives primes arising in A002731, A027861.` `Adjacent sequences: A091274 A091275 A091276 this_sequence A091278 A091279 A091280` `Sequence in context: A115283 A078382 A075651 this_sequence A136484 A137039 A137035`
	KEYWORD	`nonn,easy`
	AUTHOR	`Ray Chandler (rayjchandler(AT)sbcglobal.net), Jan 03 2004`

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Last modified May 16 01:24 EDT 2008. Contains 139630 sequences.

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