A253728 Number of (n+1)X(4+1) 0..2 arrays with every 2X2 subblock diagonal maximum minus antidiagonal maximum unequal to its neighbors horizontally and vertically

23524, 1076964, 57696638, 3121388776, 161854461064, 8663276276434, 450354383773758, 24027672779181962, 1252290220556546196, 66663348504748366256, 3481436132211993145986, 184985706254787405564169

Offset

1,1

Comments

Column 4 of A253731

Links

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

Example

Some solutions for n=1
..2..1..0..1..0....0..2..2..1..1....2..0..0..2..1....0..0..2..0..2
..1..1..0..0..1....1..0..0..2..0....1..1..0..0..1....0..0..0..1..1

Crossrefs

Sequence in context: A234441 A253310 A253658 * A227483 A237508 A177827

Adjacent sequences: A253725 A253726 A253727 * A253729 A253730 A253731

Keyword

nonn

Author

R. H. Hardin, Jan 10 2015

Status

approved