A251303 Number of (n+1)X(3+1) 0..3 arrays with no 2X2 subblock having the sum of its diagonal elements less than the maximum of its antidiagonal elements.

26664, 2986712, 338614056, 38343620608, 4336649865709, 490318888438553, 55435729766236658, 6267641628409267438, 708630967774847135734, 80119158063101111557837, 9058423544761914851258967

Offset

1,1

Comments

Column 3 of A251308

Links

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

R. H. Hardin, Empirical recurrence of order 74

Formula

Empirical recurrence of order 74 (see link above)

Example

Some solutions for n=1
..0..2..2..3....3..0..2..0....3..2..3..3....3..2..0..1....3..3..1..0
..2..3..3..3....2..0..2..2....3..3..3..2....2..1..2..2....3..1..2..3

Crossrefs

Sequence in context: A329785 A229592 A046710 * A385341 A196937 A253292

Adjacent sequences: A251300 A251301 A251302 * A251304 A251305 A251306

Keyword

nonn

Author

R. H. Hardin, Dec 01 2014

Status

approved