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A055011 p(n+1) = next smallest prime beginning with p(n) when written in binary, starting with 2. 0
2, 5, 11, 23, 47, 191, 383, 3067, 12269, 196307, 6281839, 50254717, 201018869, 804075479, 1608150959, 102921661397 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

COMMENTS

a(5)=191 because a(4)=47 which in binary is 101111, none of 1011110(94) 1011111(95) 10111100(188) 10111101(189) 10111110 (190) are prime, but 10111111(191) is.

CROSSREFS

Cf. A048549 for base 10 analogue.

Sequence in context: A055496 A105120 A084403 * A007505 A059411 A126017

Adjacent sequences:  A055008 A055009 A055010 * A055012 A055013 A055014

KEYWORD

base,easy,nonn

AUTHOR

Henry Bottomley (se16(AT)btinternet.com), May 31 2000

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Last modified February 17 04:58 EST 2012. Contains 205985 sequences.