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A173418 Primes formed by the initial digits of the decimal expansion of 1/(Golden Ratio). 0
61, 61803398874989 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The next term consists of the first 887 digits of 1/(Golden Ratio) and is too large to show here.

LINKS

Table of n, a(n) for n=1..2.

Eric Weisstein's World of Mathematics, Phi-Prime

MAPLE

Digits := 1000: n0 := evalf((sqrt(5)-1)/2): for i from 1 to 10000 do t1 := trunc(10^i*n0): if isprime(t1) then print(t1): fi: od:

MATHEMATICA

With[{gr=RealDigits[1/GoldenRatio, 10, 1000][[1]]}, Select[Table[ FromDigits[ Take[ gr, n]], {n, 1000}], PrimeQ]] (* Harvey P. Dale, Oct 17 2012 *)

CROSSREFS

Sequence in context: A093631 A087513 A176272 * A147667 A022084 A110823

Adjacent sequences:  A173415 A173416 A173417 * A173419 A173420 A173421

KEYWORD

nonn,base,bref

AUTHOR

Michel Lagneau, Feb 17 2010

STATUS

approved

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Last modified April 6 22:23 EDT 2020. Contains 333291 sequences. (Running on oeis4.)