A253310 Number of (n+1)X(4+1) 0..2 arrays with every 2X2 subblock diagonal maximum minus antidiagonal maximum unequal to its neighbors horizontally, vertically, diagonally and antidiagonally

23524, 43220, 266074, 516928, 2643738, 6728458, 30117394, 99695754, 410717008, 1591420928, 6344648498, 26357450662, 104485597870, 444408917696, 1769592165032, 7587288988852, 30401383873084, 130670139426506

Offset

1,1

Comments

Column 4 of A253314

Links

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

R. H. Hardin, Empirical recurrence of order 62

Formula

Empirical recurrence of order 62 (see link above)

Example

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

Crossrefs

Sequence in context: A031847 A237528 A234441 * A253658 A253728 A227483

Adjacent sequences: A253307 A253308 A253309 * A253311 A253312 A253313

Keyword

nonn

Author

R. H. Hardin, Dec 30 2014

Status

approved