id:A114335 - OEIS Search Results

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Numbers n such that n^2+1 and n^2-3 are both prime.

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4, 10, 14, 20, 26, 40, 110, 124, 146, 206, 250, 326, 340, 350, 436, 440, 470, 634, 686, 704, 920, 1004, 1054, 1060, 1124, 1156, 1246, 1276, 1294, 1316, 1376, 1420, 1550, 1570, 1654, 1664, 1784, 1966, 1970, 2026, 2116, 2210, 2380, 2516, 2594, 2654, 2780 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`This is the intersection of A028873 and A005574; this sequence is also a subset of A090120 (n such that closest primes above and below n^2 differ by 4).`
	EXAMPLE	`a(2)=10 since 10^2+1 =101 and 10^2-3=97 are both prime.`
	CROSSREFS	`Adjacent sequences: A114332 A114333 A114334 this_sequence A114336 A114337 A114338` `Sequence in context: A099439 A146763 A001581 this_sequence A099355 A161366 A060031`
	KEYWORD	`nonn`
	AUTHOR	`John L. Drost (drost(AT)marshall.edu), Feb 07 2006`

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Last modified November 9 12:23 EST 2009. Contains 166233 sequences.

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