A379356 Decimal expansion of log(cosh(1)).

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

Offset

0,1

Links

Table of n, a(n) for n=0..104.

Formula

Equals log(A073743).

Equals Integral_{x=0..1} (1 - x)/cosh(x)^2 dx.

Equals Integral_{x=0..1} tanh(x) dx. - Amiram Eldar, Dec 21 2024

Example

0.4337808304830271870264946849...

Mathematica

RealDigits[Log[Cosh[1]], 10, 105][[1]]

Prog

(PARI) log(cosh(1)) \\ Stefano Spezia, Dec 22 2024

Crossrefs

Cf. A073743.

Sequence in context: A237197 A006994 A038627 * A155835 A138187 A105342

Adjacent sequences: A379353 A379354 A379355 * A379357 A379358 A379359

Keyword

cons,nonn

Author

Artur Jasinski, Dec 21 2024

Status

approved