A123128 - OEIS

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A123128

Add n to the n-th difference between consecutive primes.

2, 4, 5, 8, 7, 10, 9, 12, 15, 12, 17, 16, 15, 18, 21, 22, 19, 24, 23, 22, 27, 26, 29, 32, 29, 28, 31, 30, 33, 44, 35, 38, 35, 44, 37, 42, 43, 42, 45, 46, 43, 52, 45, 48, 47, 58, 59, 52, 51, 54, 57, 54, 63, 60, 61, 62, 59, 64, 63, 62, 71, 76, 67, 66, 69, 80, 73, 78, 71, 74, 77 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	LINKS	`A. Frank & P. Jacqueroux, International Contest, 2001.`
	FORMULA	`a(n) = n + (prime(n+1)-prime(n)) = n + A001223(n)`
	PROG	`(PARI) for(n=1, 100, print1(prime(n+1)-prime(n)+n, ", "))`
	CROSSREFS	`Cf. A001223.` `Sequence in context: A076990 A057168 A087711 * A057064 A144831 A088580` `Adjacent sequences: A123125 A123126 A123127 * A123129 A123130 A123131`
	KEYWORD	`nonn`
	AUTHOR	`Herman Jamke (hermanjamke(AT)fastmail.fm), Sep 30 2006`

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Last modified February 17 14:50 EST 2012. Contains 206050 sequences.