OFFSET
0,1
COMMENTS
Smoothed octagon packing density.
LINKS
G. C. Greubel, Table of n, a(n) for n = 0..10000
Eric Weisstein's World of Mathematics, Smoothed Octagon
EXAMPLE
0.90241418299715727039646130311253337316823442456643...
MATHEMATICA
RealDigits[(8-4Sqrt[2 ]-Log[2])/(2Sqrt[2]-1), 10, 120][[1]] (* Harvey P. Dale, Nov 30 2012 *)
PROG
(PARI) (8-log(2)-sqrt(32))/(sqrt(8)-1) \\ Charles R Greathouse IV, Feb 22 2016
(Magma) SetDefaultRealField(RealField(100)); (8 -Log(2) -Sqrt(32) )/( Sqrt(8) -1); // G. C. Greubel, Oct 01 2018
CROSSREFS
KEYWORD
AUTHOR
Eric W. Weisstein, Apr 15 2004
STATUS
approved