A019645 Decimal expansion of sqrt(Pi*e).

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

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn
• cons

Examples

			2.9222823653222778645416230761076823153979...
		

Links

• Ivan Panchenko, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A019609.

Programs

Magma

C := ComplexField(); [Sqrt(Pi(C)*Exp(1))]; // G. C. Greubel, Nov 17 2017

Mathematica

RealDigits[Sqrt[Pi E],10,120][[1]] (* Harvey P. Dale, Jun 14 2014 *)

PARI

sqrt(Pi*exp(1)) \\ G. C. Greubel, Nov 17 2017

Formula

Equals A002161*A019774. - R. J. Mathar, Apr 11 2024