A269559 Decimal expansion of Psi(log(2)), negated.

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

Offset: 1

Author

Iaroslav V. Blagouchine, Feb 29 2016

Keywords

• nonn
• cons

Comments

Psi(x) is the digamma function (logarithmic derivative of the Gamma function).

Examples

			-1.2395972796176185082441275516860842454332895226874208...
		

Links

• G. C. Greubel, Table of n, a(n) for n = 1..5000

Crossrefs

Cf. A269557, A269558, A269545, A269546, A269547, A257955, A257957, A257958, A257959, A002161.

Cf. A073005, A068466, A175380, A175379, A220086, A203142, A256190, A256191, A256192, A203140, A203139, A203138, A203137.

Programs

MATLAB

format long; psi(log(2))

Maple

evalf(Psi(ln(2)), 120);

Mathematica

RealDigits[PolyGamma[Log[2]], 10, 120][[1]]

PARI

default(realprecision, 120); psi(log(2))