A253874 Number of (4+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal maximum minus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally

119040, 2589968, 50414592, 1052857184, 20975776000, 424261181216, 8415694011136, 167533350155040, 3315015958304000, 65750261230687264, 1301328247318549760, 25772170438510291232, 509844817010765307136

Offset

1,1

Comments

Row 4 of A253871

Links

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

R. H. Hardin, Empirical recurrence of order 86

Formula

Empirical recurrence of order 86 (see link above)

Example

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

Crossrefs

Sequence in context: A202285 A250829 A253867 * A253540 A157736 A031686

Adjacent sequences: A253871 A253872 A253873 * A253875 A253876 A253877

Keyword

nonn

Author

R. H. Hardin, Jan 17 2015

Status

approved