A172862 Number of n X n 0..5 arrays with row sums 5 and column sums 5.

1, 1, 6, 231, 40176, 22069251, 30767936616, 94161778046406, 569304690994400256, 6274236760589024662176, 118285830126660123474844752, 3623440212198461411381072575512, 172850452498398420310370097345242112

Offset

0,3

Links

R. H. Hardin, Table of n, a(n) for n = 0..35

M. L. Stein and P. R. Stein, Enumeration of Stochastic Matrices with Integer Elements, Report LA-4434, Los Alamos Scientific Laboratory of the University of California, Los Alamos, NM, Jun 1970. [Annotated scanned copy]

Crossrefs

Column k=5 of A257493.

Sequence in context: A112001 A286314 A099124 * A099129 A286392 A221926

Adjacent sequences: A172859 A172860 A172861 * A172863 A172864 A172865

Keyword

nonn

Author

R. H. Hardin, Feb 06 2010

Status

approved