login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A131563 Decimal expansion of e*Pi*phi, where phi = (sqrt(5) + 1)/2. 11
1, 3, 8, 1, 7, 5, 8, 0, 2, 2, 7, 1, 7, 6, 4, 9, 4, 4, 3, 9, 7, 3, 6, 7, 5, 6, 2, 0, 1, 2, 0, 7, 5, 9, 5, 6, 5, 9, 2, 1, 9, 2, 1, 2, 5, 4, 2, 5, 1, 5, 3, 6, 4, 2, 1, 6, 8, 9, 5, 0, 8, 4, 6, 5, 8, 2, 0, 9, 0, 9, 0, 8, 4, 6, 6, 9, 4, 1, 5, 8, 6, 4, 7, 5, 3, 7, 9, 9, 7, 2, 2, 3, 2, 5, 3, 6, 1, 8, 4 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

2,2

LINKS

Harry J. Smith, Table of n, a(n) for n = 2..20000

EXAMPLE

e*Pi*phi = 13.817580227...

MAPLE

exp(1)*Pi*(1+sqrt(5))/2;

MATHEMATICA

phi=(5^(1/2)+1)/2; RealDigits[N[Pi*E*phi, 6! ]][[1]] (* Vladimir Joseph Stephan Orlovsky, Jun 18 2009 *)

PROG

(PARI) { default(realprecision, 20080); phi = (1 + sqrt(5))/2; x=exp(1)*Pi*phi/10; for (n=2, 20000, d=floor(x); x=(x-d)*10; write("b131563.txt", n, " ", d)); } \\ Harry J. Smith, Apr 26 2009

CROSSREFS

Decimal expansion of e: A001113. Decimal expansion of Pi: A000796. Decimal expansion of phi: A001622. e*Pi: A019609. Pi*phi: A094886. e*phi: A094885.

Sequence in context: A054399 A013676 A199270 * A016622 A143623 A094874

Adjacent sequences:  A131560 A131561 A131562 * A131564 A131565 A131566

KEYWORD

cons,nonn

AUTHOR

Omar E. Pol, Aug 27 2007, Dec 17 2008

EXTENSIONS

More terms from N. J. A. Sloane, Dec 19 2008

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 6 18:20 EDT 2020. Contains 336256 sequences. (Running on oeis4.)