A254425 Number of (4+1)X(n+1) 0..2 arrays with every 2X2 subblock diagonal maximum minus antidiagonal maximum nondecreasing horizontally, vertically and ne-to-sw antidiagonally

9623, 238639, 6683795, 199339608, 5865501284, 176249310185, 5303248513516, 160601900255520, 4871790218122520, 148101566721144218, 4506468752512913580, 137234365855057507402, 4181007197115662729640, 127420614137971238715046

Offset

1,1

Comments

Row 4 of A254422

Links

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

R. H. Hardin, Empirical recurrence of order 59

Formula

Empirical recurrence of order 59 (see link above)

Example

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

Crossrefs

Sequence in context: A031653 A253520 A254418 * A237231 A031627 A252128

Adjacent sequences: A254422 A254423 A254424 * A254426 A254427 A254428

Keyword

nonn

Author

R. H. Hardin, Jan 30 2015

Status

approved