id:A099655 - OEIS Search Results

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a[n]=A098085[n]-A096215[n], difference between next and previous primes to A011974[n], the sum of two consecutive primes.

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4, 4, 2, 2, 6, 2, 6, 2, 6, 2, 4, 6, 6, 8, 4, 4, 14, 4, 2, 10, 6, 6, 6, 10, 2, 12, 12, 12, 12, 2, 6, 6, 6, 10, 14, 4, 14, 14, 10, 4, 8, 6, 6, 8, 8, 10, 6, 8, 8, 2, 12, 8, 8, 6, 12, 18, 18, 10, 6, 6, 6, 2, 2, 12, 12, 6, 12, 8, 10, 8, 10, 8, 4, 6, 8, 4, 14, 12, 2, 2, 14, 14, 14, 14, 2, 20, 20, 8, 10, 8 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`a(n)=NextPrime[p(n)+p(n+1)]-PreviousPrime[p(n)+p(n+1)]`
	EXAMPLE	`n=8, p(8)+p(9)=19+23=42,a[8]=43-41=2=a(8).`
	MATHEMATICA	<<NumberTheory`NumberTheoryFunctions` t1=Table[PreviousPrime[Prime[n]+Prime[n+1]], {n, 1, 128}]; t2=Table[NextPrime[Prime[n]+Prime[n+1]], {n, 1, 128}]; t2-t1
	CROSSREFS	`Cf. A098085, A096215, A011974.` `Sequence in context: A029676 A105190 A002581 this_sequence A146899 A031351 A068923` `Adjacent sequences: A099652 A099653 A099654 this_sequence A099656 A099657 A099658`
	KEYWORD	`nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Nov 17 2004`

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Last modified November 21 14:49 EST 2008. Contains 150807 sequences.

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