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A172919 Number of n X n 0..7 arrays with row sums 7 and column sums 7. 4
1, 1, 8, 666, 381424, 976395820, 8575979362560, 215717608046511873, 13590707419428422843904, 1933216160887575268614599040, 571506744082785127089569166384000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

R. H. Hardin, Table of n, a(n) for n = 0..20

CROSSREFS

Column k=7 of A257493.

Sequence in context: A159621 A015106 A099126 * A286394 A101180 A128875

Adjacent sequences:  A172916 A172917 A172918 * A172920 A172921 A172922

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 06 2010

STATUS

approved

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Last modified January 21 22:47 EST 2020. Contains 331129 sequences. (Running on oeis4.)