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A172950 Number of n X n 0..8 arrays with row sums n and column sums n 1
1, 3, 55, 10147, 22069251, 602351808741, 215717608046511873, 1046591482728407939338275, 70413374705157290394475959841507, 66845086415203272975671039831846565573553 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

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

CROSSREFS

Sequence in context: A172873 A172907 A172932 * A172962 A110058 A083869

Adjacent sequences:  A172947 A172948 A172949 * A172951 A172952 A172953

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 06 2010

STATUS

approved

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Last modified August 12 16:32 EDT 2022. Contains 356077 sequences. (Running on oeis4.)