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A172899 Number of n X n 0..6 arrays with row sums 7 and column sums 7 1
0, 6, 606, 371272, 966989100, 8540999195040, 215298243454580553, 13576914921321831895872, 1932115872363940267546247712, 571313477490432486300617373331200 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

R. H. Hardin, Table of n, a(n) for n=1..20

CROSSREFS

Sequence in context: A134367 A255886 A300389 * A222831 A206458 A265116

Adjacent sequences:  A172896 A172897 A172898 * A172900 A172901 A172902

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 06 2010

STATUS

approved

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Last modified August 19 23:59 EDT 2022. Contains 356231 sequences. (Running on oeis4.)