A234330 Number of (n+1) X (5+1) 0..3 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 1 (constant-stress 1 X 1 tilings).

71936, 1603680, 37234216, 886832036, 21167182224, 508700005648, 12196560180032, 293794019734704, 7055459026652800, 170202461638390064, 4092483758218597696, 98860093596403529172, 2379927695576637881032

Offset

1,1

Links

R. H. Hardin, Table of n, a(n) for n = 1..152

Example

Some solutions for n=1:
  1 1 2 2 2 2    1 2 2 2 2 2    2 2 0 1 2 1    0 1 1 2 2 2
  1 2 2 1 2 3    1 1 2 3 2 3    0 1 0 0 2 2    2 2 3 3 2 1

Crossrefs

Column 5 of A234333.

Sequence in context: A187312 A080477 A376469 * A333684 A187137 A185842

Adjacent sequences: A234327 A234328 A234329 * A234331 A234332 A234333

Keyword

nonn

Author

R. H. Hardin, Dec 23 2013

Status

approved