login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Decimal expansion of 1/sqrt(tanh(1)).
0

%I #9 Dec 11 2024 09:27:53

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

%T 2,4,2,1,4,5,7,9,5,2,3,6,5,9,8,8,6,3,3,8,1,8,3,8,1,6,7,1,1,6,3,4,1,7,

%U 6,1,9,6,5,2,6,1,1,7,2,9,8,6,4,7,2,5,3,8,1,8,4,1,4,9,9,3,3,4,2,9

%N Decimal expansion of 1/sqrt(tanh(1)).

%D Steven R. Finch, Mathematical Constants, Encyclopedia of Mathematics and its Applications, vol. 94, Cambridge University Press, 2003, Section 3.6.5, p. 223.

%H <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>

%F Equals sqrt(A073747). - _Hugo Pfoertner_, Dec 10 2024

%e 1.145877517669027008315306752403764242145795236598...

%t RealDigits[1/Sqrt[Tanh[1]],10,100][[1]]

%Y Cf. A073744, A073747.

%K nonn,cons

%O 1,3

%A _Stefano Spezia_, Dec 10 2024