A251358 - OEIS

%I #4 Dec 01 2014 20:01:36

%S 1338276196,32416955585740,781429834781394639,18867073782293000228991,

%T 455562927063978805202146318,11000436315087679572883176345368,

%U 265628226890402574176754753992638816

%N Number of (n+1)X(7+1) 0..3 arrays with no 2X2 subblock having its maximum diagonal element less than the absolute difference of its antidiagonal elements

%C Column 7 of A251359

%H R. H. Hardin, <a href="/A251358/b251358.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

%e ..0..0..0..0..0..3..0..2....0..0..0..0..0..0..1..1....0..0..0..0..2..1..2..3

%e ..0..0..0..2..3..0..3..1....0..0..0..0..0..0..2..3....0..0..0..2..3..1..2..3

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 01 2014