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 A103811 Primes from merging of 3 successive digits in decimal expansion of the Golden Ratio, (1+sqrt(5))/2. 24
 887, 683, 563, 811, 179, 227, 281, 449, 911, 113, 137, 521, 223, 353, 317, 179, 607, 263, 443, 433, 389, 659, 593, 829, 563, 383, 661, 613, 131, 199, 829, 269, 631, 313, 443, 149, 587, 701, 887, 547, 461, 569, 953, 449, 241, 443, 449, 947, 467, 509, 743 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Leading zeros are not permitted, so each term is 3 digits in length. - Harvey P. Dale, Oct 23 2011 REFERENCES Mohammad K. Azarian, Problem 123, Missouri Journal of Mathematical Sciences, Vol. 10, No. 3, Fall 1998, p. 176. Solution published in Vol. 12, No. 1, Winter 2000, pp. 61-62. LINKS Vincenzo Librandi, Table of n, a(n) for n = 1..1000 Eric Weisstein's World of Mathematics, The Golden Ratio. Expansion of the Golden Ratio done to 20,000 digits as part of project Gutenberg. MATHEMATICA With[{len=3}, FromDigits/@Select[Partition[RealDigits[GoldenRatio, 10, 1000][[1]], len, 1], PrimeQ[FromDigits[#]] && IntegerLength[ FromDigits[#]] == len&]] (* Harvey P. Dale, Oct 23 2011 *) CROSSREFS Sequence in context: A261760 A031794 A020393 * A190354 A164513 A031938 Adjacent sequences:  A103808 A103809 A103810 * A103812 A103813 A103814 KEYWORD nonn,base AUTHOR Andrew G. West (WestA(AT)wlu.edu), Mar 29 2005 EXTENSIONS Offset changed from 0 to 1 by Vincenzo Librandi, Apr 22 2013 STATUS approved

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Last modified October 19 04:40 EDT 2019. Contains 328211 sequences. (Running on oeis4.)