A091651 Decimal expansion of (5 - Pi)/4.

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

Offset: 0

Author

Eric W. Weisstein, Jan 25 2004

Keywords

• nonn
• cons

Comments

Probability that round(x/y) is even for x,y chosen at random in (0,1).

Examples

			0.46460183660255169038433915418012427895070765015622...
		

Links

• Paolo Xausa, Table of n, a(n) for n = 0..10000
• Eric Weisstein's World of Mathematics, Real Number Picking
• Morphocular, The answer involves Pi because why wouldn't it?, YouTube video, Jun 29 2025.
• Index entries for transcendental numbers

Crossrefs

Cf. A000796, A385647.

Programs

Mathematica

RealDigits[(5-Pi)/4,10,120][[1]] (* Harvey P. Dale, May 22 2017 *)

PARI

(5-Pi)/4 \\ Charles R Greathouse IV, Oct 01 2022