id:A110975 - OEIS Search Results

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Numbers n such that 2*prime(n) - prime(n+1) is a square.

+0
2

1, 2, 5, 6, 11, 24, 49, 50, 73, 87, 182, 183, 202, 203, 307, 309, 379, 458, 459, 520, 677, 961, 1001, 1475, 1618, 1619, 1769, 2089, 2427, 2428, 3303, 3378, 4090, 4397, 4944, 5444, 5969, 6496, 6497, 7653, 8557, 8871, 8873, 9091, 9526, 10524, 11580, 11824 (list; graph; listen)

	OFFSET	`1,2`
	MATHEMATICA	`Select[Range[12000], IntegerQ[(2Prime[ # ] - Prime[ # + 1])^(1/2)] &] (Chandler)`
	CROSSREFS	`Cf. A110970.` `Sequence in context: A049054 A135476 A051217 this_sequence A069789 A086334 A057518` `Adjacent sequences: A110972 A110973 A110974 this_sequence A110976 A110977 A110978`
	KEYWORD	`nonn`
	AUTHOR	`Giovanni Teofilatto (g.teofilatto(AT)tiscalinet.it), Sep 28 2005`
	EXTENSIONS	`Corrected and extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Oct 07 2005`

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

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