A157983 a(n)=3!*n!/(8!*19!)

759, 18975, 493350, 13320450, 372972600, 10816205400, 324486162000, 10059071022000, 321890272704000, 10622378999232000, 361160885973888000, 12640631009086080000, 455062716327098880000, 16837320504102658560000, 639818179155901025280000

Offset

24,1

Comments

From calculations for a Witt design: http://www.math.uic.edu/~ronan/Witt_design;

Links

Table of n, a(n) for n=24..38.

Mathematica

Flatten[Table[If[IntegerQ[3!*n!/(8!*19! )], 3!*n!/(8!*19! ), {}], {n, 0, 48}]]

Crossrefs

Sequence in context: A001920 A225022 A034414 * A014747 A258135 A247400

Adjacent sequences: A157980 A157981 A157982 * A157984 A157985 A157986

Keyword

nonn

Author

Roger L. Bagula, Mar 10 2009

Extensions

Edited by N. J. A. Sloane, Mar 14 2009

Status

approved