A182064 Decimal expansion of the White House switchboard constant.

2, 0, 2, 4, 5, 6, 1, 4, 1, 4, 9, 2, 3, 9, 6, 5, 7, 9, 9, 2, 3, 8, 3, 7, 1, 7, 8, 5, 7, 2, 5, 9, 2, 0, 5, 7, 3, 5, 2, 3, 9, 7, 8, 2, 9, 8, 6, 6, 9, 5, 1, 5, 0, 3, 5, 8, 0, 0, 8, 1, 5, 5, 6, 7, 8, 1, 6, 0, 8, 8, 7, 6, 2, 7, 2, 4, 6, 3, 4, 2, 2, 4, 5, 4, 7, 6, 3, 8, 5, 1, 5, 9, 5, 0, 5, 2, 4, 5, 7, 4, 2, 2, 5, 4, 5

Offset

0,1

Comments

First few digits reproduce the digits of the White House switchboard: 202-456-1414.

Links

G. C. Greubel, Table of n, a(n) for n = 0..5000

Eric Weisstein's World of Mathematics, White House Switchboard Constant

White House, Write or Call the White House

xkcd, A Table of Slightly Wrong Equations and Identities Useful for Approximations and/or Trolling Teachers

Formula

Equals 1/e^((1+8^(1/(e-1)))^(1/Pi)).

Example

0.2024561414...

Mathematica

RealDigits[1/E^(1 + 8^(1/(E - 1)))^(1/Pi), 10, 105][[1]] (* Bruno Berselli, Apr 26 2012 *)

Prog

(PARI) exp(-(1+8^(1/(exp(1)-1)))^(1/Pi)) \\ G. C. Greubel, Aug 20 2017

Crossrefs

Sequence in context: A120553 A078023 A077484 * A194751 A194739 A194765

Adjacent sequences: A182061 A182062 A182063 * A182065 A182066 A182067

Keyword

nonn,cons,easy

Author

Eric W. Weisstein, Apr 26 2012

Status

approved