A103475 Denominators of the raw moments of the distribution of areas for triangles picked at random in a triangle of unit area.

1, 12, 72, 9000, 900, 2469600, 2116800, 2268000, 264600, 93915360, 42688800, 537145408800, 103297194000, 18162144000, 11416204800, 294461024457600, 2165154591600, 75709937046744000, 1859542313428800, 6151869307584

Offset

1,2

Links

Table of n, a(n) for n=1..20.

Eric Weisstein's World of Mathematics, Triangle Triangle Picking

Example

1/12, 1/144, 31/9000, 1/450, 1063/617400, 403/264600, ...

Crossrefs

Cf. A103474.

Cf. A130117, A130118.

Sequence in context: A341542 A120793 A120783 * A024014 A069039 A156196

Adjacent sequences: A103472 A103473 A103474 * A103476 A103477 A103478

Keyword

nonn,frac

Author

Eric W. Weisstein, Feb 07 2005, May 09 2007

Status

approved