A234553 Number of (n+1) X (4+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3 (constant-stress 1 X 1 tilings).

153752, 1527660, 15022720, 149584336, 1489279544, 14987310200, 150974940800, 1539878118344, 15724391364084, 162989626785516, 1691185964434064, 17867797842219968, 188863261039853220, 2040000891699660908

Offset

1,1

Links

R. H. Hardin, Table of n, a(n) for n = 1..80

Example

Some solutions for n=1:
  1 0 4 1 4      1 0 4 3 6      0 4 3 5 5      0 5 6 5 6
  2 4 5 5 5      1 3 4 6 6      1 2 4 3 6      0 2 0 2 6

Crossrefs

Column 4 of A234555.

Sequence in context: A172789 A248594 A339528 * A073086 A341212 A255040

Adjacent sequences: A234550 A234551 A234552 * A234554 A234555 A234556

Keyword

nonn

Author

R. H. Hardin, Dec 28 2013

Status

approved