A172822 Number of n X n 0..4 arrays with row sums n and column sums n

1, 3, 55, 10147, 21107931, 511508441781, 150603715387867113, 555249505892003620997475, 26159597034338175244538552103907, 16021054958659349444630042183181806132953

Offset

1,2

Links

R. H. Hardin, Table of n, a(n) for n=1..12

Crossrefs

Sequence in context: A002818 A119190 A172748 * A172873 A172907 A172932

Adjacent sequences: A172819 A172820 A172821 * A172823 A172824 A172825

Keyword

nonn

Author

R. H. Hardin Feb 06 2010

Status

approved