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A201495 Number of nX7 zero-sum -2..2 arrays with rows and columns lexicographically nondecreasing 0
24, 151593, 3127432827, 68110029402413, 1219998885223727883 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A201496

LINKS

Table of n, a(n) for n=1..5.

EXAMPLE

Some solutions for n=2

.-2.-2.-1.-1.-1..0..1...-2.-2.-2.-1..0..1..2...-2.-2.-1..0..1..2..2

.-1..2..2..2..2.-2..1...-1.-1..1..0..2..1..2...-1..1..2.-1.-1..0..0

CROSSREFS

Sequence in context: A294318 A061527 A210278 * A258924 A179268 A056947

Adjacent sequences:  A201492 A201493 A201494 * A201496 A201497 A201498

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 02 2011

STATUS

approved

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Last modified September 27 15:44 EDT 2021. Contains 347691 sequences. (Running on oeis4.)