A234488 - OEIS

A234488

Number of (n+1) X (6+1) 0..3 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 2 (constant-stress 1 X 1 tilings).

56312, 199340, 705072, 2505400, 8928348, 31925284, 114484712, 411823840, 1485448976, 5373690488, 19489761268, 70882202404, 258422403744, 944616682504, 3460926725184, 12711697164416, 46792887212012, 172654340693828

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..84

EXAMPLE

Some solutions for n=2:

0 0 0 1 2 2 0 2 1 1 0 1 1 1 0 1 2 2 3 1 2

3 1 3 2 1 3 3 2 3 1 2 1 3 1 1 0 3 1 0 0 3

2 2 2 3 0 0 2 3 2 2 1 2 2 2 0 1 2 2 3 1 2

CROSSREFS

Column 6 of A234490.