A391867 Decimal expansion of the probability that three points selected uniformly and independently at random one on each of the three sides of an isosceles right triangle form an acute triangle.

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

Offset

0,1

Links

Table of n, a(n) for n=0..104.

Formula

Equals (7*log(2)-4)/3.

Example

0.284010087973205721973541616735745325509500313507262...

Mathematica

RealDigits[(7*Log[2]-4)/3, 10, 120][[1]]

Prog

(PARI) (7*log(2)-4)/3

Crossrefs

Cf. A193535, A394107, A394836.

Sequence in context: A268491 A076588 A068565 * A092042 A389491 A158934

Adjacent sequences: A391864 A391865 A391866 * A391868 A391869 A391870

Keyword

nonn,cons

Author

Amiram Eldar, Apr 13 2026

Status

approved