A390974 Decimal expansion of sqrt(log(2)^2 + 4*Pi^2).

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

Offset

1,1

Comments

Radius of analyticity of 1/(2 - exp(x)) - 1/(2*(log(2) - x)): the e.g.f. of A000670 minus the principal part at its pole log(2).

Links

Table of n, a(n) for n=1..100.

H. S. Wilf, Generatingfunctionology, 2nd edn., Academic Press, NY, 1994, p. 175.

Index entries for transcendental numbers.

Example

6.32130292093929286805344201364860463643459666266...

Mathematica

RealDigits[Sqrt[Log[2]^2+4Pi^2], 10, 100][[1]]

Crossrefs

Cf. A000670, A002162, A016627, A212002.

Sequence in context: A277435 A033326 A068996 * A362871 A068924 A106224

Adjacent sequences: A390971 A390972 A390973 * A390975 A390976 A390977

Keyword

nonn,cons,easy

Author

Stefano Spezia, Nov 25 2025

Status

approved