A222128 Decimal expansion of the real part of 1/i^Pi, where i=sqrt(-1).

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

Offset: 0

Author

Bruno Berselli, Feb 08 2013

Keywords

• nonn
• cons

Comments

Also, decimal expansion of the real part of i^Pi.

Examples

			0.22058404074969808866894591325578751045884803815941067237004887322...
		

Links

• Vincenzo Librandi, Table of n, a(n) for n = 0..5000

Crossrefs

Cf. A102753, A211883, A222129 (imaginary part of 1/i^Pi).

Programs

Mathematica

RealDigits[Re[1/I^Pi], 10, 90][[1]] (* or *) RealDigits[Cos[Pi^2/2], 10, 90][[1]]

Maxima

fpprec:90; ev(bfloat(realpart(1/%i^%pi)));

Formula

Equals cos(Pi^2/2).