A093581 - OEIS

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A093581

Numerators of odd moments in the distribution of chord lengths for picked at random on the circumference of a unit circle.

2

4, 32, 512, 4096, 131072, 1048576, 16777216, 134217728, 8589934592, 68719476736, 1099511627776, 8796093022208, 281474976710656, 2251799813685248, 36028797018963968, 288230376151711744

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OFFSET

1,1

COMMENTS

Presumably this is the same as A102557? - Andrew S. Plewe, Apr 18 2007

LINKS

Table of n, a(n) for n=1..16.

Eric Weisstein's World of Mathematics, Circle Line Picking

FORMULA

Equals 4*A061549.

EXAMPLE

1, 4/Pi, 2, 32/(3*Pi), 6, 512/(15*Pi), 20, 4096/(35*Pi), ...

CROSSREFS

Cf. A000984, A001803, A061549.

Denominators are A001803*Pi.

Sequence in context: A034663 A192501 A192487 * A102557 A144935 A153511

Adjacent sequences: A093578 A093579 A093580 * A093582 A093583 A093584

KEYWORD

nonn,frac

AUTHOR

Eric W. Weisstein, Apr 01 2004

STATUS

approved