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A172733 Number of n X n 0..3 arrays with row sums 8 and column sums 8 1
0, 0, 6, 8515, 84202220, 2805859246095, 272039989206828885, 68307608848277646753795, 40385466638839151897733367128, 51971656438500975228442173361615800 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

R. H. Hardin, Table of n, a(n) for n=1..17

CROSSREFS

Sequence in context: A158880 A341874 A137040 * A329911 A088021 A102979

Adjacent sequences:  A172730 A172731 A172732 * A172734 A172735 A172736

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.)