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Decimal expansion of the White House switchboard constant.
1

%I #35 Aug 21 2017 03:14:58

%S 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,

%T 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,

%U 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

%N Decimal expansion of the White House switchboard constant.

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

%H G. C. Greubel, <a href="/A182064/b182064.txt">Table of n, a(n) for n = 0..5000</a>

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/WhiteHouseSwitchboardConstant.html">White House Switchboard Constant</a>

%H White House, <a href="http://www.whitehouse.gov/contact/write-or-call">Write or Call the White House</a>

%H xkcd, <a href="http://xkcd.com/1047/">A Table of Slightly Wrong Equations and Identities Useful for Approximations and/or Trolling Teachers</a>

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

%e 0.2024561414...

%t RealDigits[1/E^(1 + 8^(1/(E - 1)))^(1/Pi), 10, 105][[1]] (* _Bruno Berselli_, Apr 26 2012 *)

%o (PARI) exp(-(1+8^(1/(exp(1)-1)))^(1/Pi)) \\ _G. C. Greubel_, Aug 20 2017

%K nonn,cons,easy

%O 0,1

%A _Eric W. Weisstein_, Apr 26 2012