A130118 Denominators of the central moments of the distribution of areas for triangles picked at random in a triangle of unit area.

1, 1, 144, 54000, 864000, 66679200, 25604812800, 18289152000, 15049359360, 187787787264000, 11217190492569600, 423431605436468428800, 101623585304752422912000, 488574929349771264000

Offset

0,3

Links

Table of n, a(n) for n=0..13.

Eric Weisstein's World of Mathematics, Triangle Triangle Picking

Example

1, 0, 1/144, 61/54000, 343/864000, 9493/66679200, ...

Crossrefs

Cf. A103474, A103475, A130117.

Sequence in context: A230788 A231938 A028473 * A288909 A187169 A187464

Adjacent sequences: A130115 A130116 A130117 * A130119 A130120 A130121

Keyword

nonn,frac

Author

Eric W. Weisstein, May 09 2007

Status

approved