A103474 Numerators of the raw moments of the distribution of areas for triangles picked at random in a triangle of unit area.

1, 1, 1, 31, 1, 1063, 403, 211, 13, 2593, 697, 5412109, 665921, 77279, 32939, 589936987, 3075829, 77702459911, 1402074523, 3459515, 2802641, 2712400121, 10170076061, 4779350269801, 339859110917, 3851369495951

Offset

1,4

Links

Table of n, a(n) for n=1..26.

Eric Weisstein's World of Mathematics, Triangle Triangle Picking

Example

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

Crossrefs

Cf. A103475.

Cf. A130117, A130118.

Sequence in context: A239633 A174692 A172302 * A047687 A040953 A040952

Adjacent sequences: A103471 A103472 A103473 * A103475 A103476 A103477

Keyword

nonn,frac

Author

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

Status

approved