A172733 Number of n X n 0..3 arrays with row sums 8 and column sums 8

0, 0, 6, 8515, 84202220, 2805859246095, 272039989206828885, 68307608848277646753795, 40385466638839151897733367128, 51971656438500975228442173361615800

Offset

1,3

Links

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

Crossrefs

Sequence in context: A341874 A137040 A357805 * A361901 A329911 A088021

Adjacent sequences: A172730 A172731 A172732 * A172734 A172735 A172736

Keyword

nonn

Author

R. H. Hardin Feb 06 2010

Status

approved