id:A080378 - OEIS Search Results

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Residues mod 4 of the n-th difference between consecutive primes.

+0
3

1, 2, 2, 0, 2, 0, 2, 0, 2, 2, 2, 0, 2, 0, 2, 2, 2, 2, 0, 2, 2, 0, 2, 0, 0, 2, 0, 2, 0, 2, 0, 2, 2, 2, 2, 2, 2, 0, 2, 2, 2, 2, 2, 0, 2, 0, 0, 0, 2, 0, 2, 2, 2, 2, 2, 2, 2, 2, 0, 2, 2, 2, 0, 2, 0, 2, 2, 2, 2, 0, 2, 0, 2, 2, 0, 2, 0, 0, 0, 2, 2, 2, 2, 2, 0, 2, 0, 0, 2, 0, 0, 0, 0, 0, 0, 2, 0, 2, 2, 2, 2, 2, 2, 2, 2 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`a(n)=Mod[A001223(n), 4]`
	MATHEMATICA	`Table[Mod[Prime[w+1]-Prime[w], 4], {w, 1, 256}]`
	CROSSREFS	`Cf. A001223.` `Sequence in context: A050314 A143787 A122157 this_sequence A120439 A104624 A049850` `Adjacent sequences: A080375 A080376 A080377 this_sequence A080379 A080380 A080381`
	KEYWORD	`nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Mar 04 2003`

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Last modified December 1 19:22 EST 2009. Contains 167811 sequences.

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