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A172962 Number of n X n 0..9 arrays with row sums n and column sums n. 1
1, 3, 55, 10147, 22069251, 602351808741, 215717608046511873, 1046591482728407939338275, 70417932475495769964322670258947, 66879971495995556019851723767661130580273 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

R. H. Hardin, Table of n, a(n) for n=1..11

CROSSREFS

Sequence in context: A172907 A172932 A172950 * A110058 A083869 A290773

Adjacent sequences:  A172959 A172960 A172961 * A172963 A172964 A172965

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 06 2010

STATUS

approved

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Last modified September 28 07:53 EDT 2022. Contains 357063 sequences. (Running on oeis4.)