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Search: id:A113824
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A113824 a(1)=1; a(n+1) = the least prime greater than 2*a(n) which is a(n) plus a power of two. +0
5
1, 3, 7, 23, 151, 65687, 9007199254806679, 73795983494093013143, 205688069665150755269371147819668813122842057000180977011589271 (list; graph; listen)
OFFSET

1,2

COMMENT

Those powers of two are A073924.

EXAMPLE

151 is there because 23 + 2^7 = 151 is prime.

CROSSREFS

Cf. A073924, A080355, A080567, A099969, A099970, A099971, A099972.

Sequence in context: A120271 A145938 A048721 this_sequence A121883 A060235 A090188

Adjacent sequences: A113821 A113822 A113823 this_sequence A113825 A113826 A113827

KEYWORD

nonn

AUTHOR

Artur Jasinski (grafix(AT)csl.pl), Jan 23 2006

EXTENSIONS

Edited by Don Reble (djr(AT)nk.ca), Jan 25 2006

page 1

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Last modified November 18 20:14 EST 2008. Contains 147244 sequences.


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