A234494 - OEIS

A234494

Number of (n+1) X (4+1) 0..5 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 2 (constant-stress 1 X 1 tilings).

%I #6 Jun 20 2022 19:13:47

%S 99142,1483566,22124316,337787398,5086391644,78343976876,

%T 1187892774098,18458711626338,281836734313650,4419843758823480,

%U 67966077488967054,1076066240683859120,16667186081407001668,266487707205522217138

%N Number of (n+1) X (4+1) 0..5 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 2 (constant-stress 1 X 1 tilings).

%H R. H. Hardin, <a href="/A234494/b234494.txt">Table of n, a(n) for n = 1..132</a>

%e Some solutions for n=1:

%e 5 3 3 2 3 0 0 0 2 4 0 4 4 2 4 5 5 4 1 0

%e 0 0 2 3 2 3 5 3 3 3 0 2 4 0 4 2 4 5 4 1

%Y Column 4 of A234497.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 26 2013