A234127 Number of (n+1) X (4+1) 0..6 arrays with every 2 X 2 subblock having the absolute values of all six edge and diagonal differences no larger than 1.

12457, 484731, 19007583, 753253097, 29939517797, 1191882104721, 47493714739641, 1893857438251263, 75563062469539403, 3016375900398947031, 120461028024895476887, 4812488258562982818841, 192324808079833297779041, 7688236968245622379615485, 307418256553665448459786417

Offset

1,1

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

R. H. Hardin, Empirical recurrence of order 78

Formula

Empirical recurrence of order 78 (see link above).

Example

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

Crossrefs

Column 4 of A234131.

Sequence in context: A252613 A221016 A237901 * A272132 A206664 A033669

Adjacent sequences: A234124 A234125 A234126 * A234128 A234129 A234130

Keyword

nonn

Author

R. H. Hardin, Dec 19 2013

Status

approved