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A103773
Primes from merging of 9 successive digits in decimal expansion of the Golden Ratio, (1+sqrt(5))/2.
31
398874989, 752126633, 250171169, 222104321, 626296313, 381497587, 587012203, 408058879, 410443207, 104432077, 850987433, 433944221, 798731761, 523689427, 287856997, 165339247, 115881863, 993432359, 509040947, 116456299, 602017279, 471753427, 827505131, 248093947
OFFSET
1,1
COMMENTS
Leading zeros are not permitted, so each term is 9 digits in length. - Harvey P. Dale, Oct 23 2011
Presumably all 45086079 possible terms eventually occur, probably in the first billion terms or so. - Charles R Greathouse IV, Sep 25 2012
LINKS
Eric Weisstein's World of Mathematics, Golden Ratio.
Expansion of the Golden Ratio done to 20,000 digits as part of project Gutenberg.
MATHEMATICA
Select[FromDigits/@Partition[RealDigits[GoldenRatio, 10, 2000][[1]], 9, 1], IntegerLength[#]==9&&PrimeQ[#]&] (* Harvey P. Dale, Mar 19 2011 *)
CROSSREFS
Cf. A001622.
Sequence in context: A271022 A015369 A321138 * A172602 A108212 A103124
KEYWORD
nonn,base
AUTHOR
Andrew G. West (WestA(AT)wlu.edu), Mar 29 2005
EXTENSIONS
Broken URL to Project Gutenberg replaced by Georg Fischer, Jan 03 2009
Extended by Harvey P. Dale, Mar 19 2011
STATUS
approved