id:A092131 - OEIS Search Results

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Distance from 2^n to the next prime.

+0
2

0, 1, 3, 1, 5, 3, 3, 1, 9, 7, 5, 3, 17, 27, 3, 1, 29, 3, 21, 7, 17, 15, 9, 43, 35, 15, 29, 3, 11, 3, 11, 15, 17, 25, 53, 31, 9, 7, 23, 15, 27, 15, 29, 7, 59, 15, 5, 21, 69, 55, 21, 21, 5, 159, 3, 81, 9, 69, 131, 33, 15, 135, 29, 13, 131, 9, 3, 33, 29, 25, 11, 15, 29, 37, 33, 15, 11, 7, 23 (list; graph; listen)

	OFFSET	`1,3`
	COMMENT	`Essentially the same as A013597. - T. D. Noe, Jul 17 2007`
	LINKS	`T. D. Noe, Table of n, a(n) for n=1..5000`
	FORMULA	`a(n)=nextprime(2^n)-2^n`
	EXAMPLE	`a(13)=17 because 2^13=8192 and the next prime is 8209=8192+17`
	PROGRAM	`(PARI) for(i=1, 100, x=2^i; print1(nextprime(x)-x, ", "))`
	CROSSREFS	`Sequence in context: A060439 A135224 A013597 this_sequence A092099 A096567 A076363` `Adjacent sequences: A092128 A092129 A092130 this_sequence A092132 A092133 A092134`
	KEYWORD	`easy,nonn`
	AUTHOR	`Helmut Richter (richter(AT)lrz.de), Mar 30 2004`

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Last modified July 24 12:00 EDT 2008. Contains 142294 sequences.

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