A201495 - OEIS

%I #4 Mar 31 2012 12:36:44

%S 24,151593,3127432827,68110029402413,1219998885223727883

%N Number of nX7 zero-sum -2..2 arrays with rows and columns lexicographically nondecreasing

%C Column 7 of A201496

%e Some solutions for n=2

%e .-2.-2.-1.-1.-1..0..1...-2.-2.-2.-1..0..1..2...-2.-2.-1..0..1..2..2

%e .-1..2..2..2..2.-2..1...-1.-1..1..0..2..1..2...-1..1..2.-1.-1..0..0

%K nonn

%O 1,1

%A _R. H. Hardin_ Dec 02 2011