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A103793 Primes from merging of 7 successive digits in decimal expansion of the Golden Ratio, (1+sqrt(5))/2. 31
1618033, 8874989, 1798057, 7204189, 1893911, 1374847, 5386891, 2126633, 6222353, 6354433, 8322661, 1696207, 9631361, 1361443, 1344947, 9874339, 7499887, 6249407, 1210427, 6217711, 7111777, 8053153, 9914669, 8782289 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Leading zeros are not permitted, so each term is 7 digits in length. - Harvey P. Dale, Oct 23 2011
LINKS
Simon Plouffe, Expansion of the Golden Ratio done to 20,000 digits as part of project Gutenberg.
Eric Weisstein's World of Mathematics, Golden Ratio.
MATHEMATICA
With[{len=7}, FromDigits/@Select[Partition[RealDigits[GoldenRatio, 10, 1000][[1]], len, 1], PrimeQ[FromDigits[#]] && IntegerLength[ FromDigits[#]] == len&]] (* Harvey P. Dale, Oct 23 2011 *)
CROSSREFS
Cf. A001622.
Sequence in context: A234410 A069374 A294776 * A064117 A173428 A015334
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
Offset changed from 0 to 1 by Vincenzo Librandi, Apr 19 2013
STATUS
approved

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Last modified March 29 08:01 EDT 2024. Contains 371265 sequences. (Running on oeis4.)