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A177798
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First primes of record chains of consecutive primes such that all of them are odious (A027697)
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3
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2, 7, 167, 199, 6271, 12227, 168713, 579907, 5937157, 6829751, 8059943, 66858173, 167857663, 661416709, 2322857987, 12012698381, 14641587607, 26304771553, 49671709081, 1244930533403, 1922085626009
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OFFSET
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1,1
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COMMENTS
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The corresponding record lengths are: 1,3,6,9,11,15, etc. (A177800).
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LINKS
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PROG
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(PARI) back(p, k)=while(k--, p=precprime(p-1)); precprime(p-1)
r=s=0; forprime(p=2, 1e9, if(hammingweight(p)%2, s++, if(s>r, r=s; print1(back(p, r)", ")); s=0)) \\ Charles R Greathouse IV, Mar 29 2013
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CROSSREFS
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KEYWORD
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nonn,base,more
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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