OFFSET
1,1
COMMENTS
Critical temperature for two-dimensional Ising model.
LINKS
G. C. Greubel, Table of n, a(n) for n = 1..10000
M. Richey, The evolution of Markov chain Monte Carlo Methods, Amer. Math. Monthly, 117 (No. 5, 2010), 383-413.
EXAMPLE
2.2691853142130219681144908103065724757259815855040013500506...
MATHEMATICA
RealDigits[2/Log[1 + Sqrt[2]], 10, 100][[1]] (* G. C. Greubel, Oct 02 2018 *)
PROG
(PARI) 2/log(1+sqrt(2)) \\ Charles R Greathouse IV, Mar 25 2014
(Magma) SetDefaultRealField(RealField(100)); 2/Log(1+Sqrt(2)); // G. C. Greubel, Oct 02 2018
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
N. J. A. Sloane, May 18 2010
STATUS
approved