A258612 T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with no 3x3 subblock diagonal sum less than the antidiagonal sum or central row sum less than the central column sum

7500, 76729, 76729, 682356, 567009, 682356, 6056521, 2729104, 2729104, 6056521, 46060932, 16806958, 8093970, 16806958, 46060932, 354117124, 90782784, 20602521, 20602521, 90782784, 354117124, 2476716772, 474650022, 65662350, 26101881

Offset

1,1

Comments

Table starts

.........7500.......76729.....682356...6056521..46060932.354117124.2476716772

........76729......567009....2729104..16806958..90782784.474650022.2276816656

.......682356.....2729104....8093970..20602521..65662350.206037316..640379355

......6056521....16806958...20602521..26101881..42003361..87260319..168065296

.....46060932....90782784...65662350..42003361..49848864..80442961..140873790

....354117124...474650022..206037316..87260319..80442961.125328025..194100624

...2476716772..2276816656..640379355.168065296.140873790.194100624..298341960

..17477633209.10535922971.1895470369.336081087.244766025.334357705..465437476

.115323919920.45716854225.5401266011.600593049.423931910.528034441..732030024

Links

R. H. Hardin, Table of n, a(n) for n = 1..798

Example

Some solutions for n=1 k=4
..0..0..0..0..0..0....0..0..0..0..0..0....0..0..0..1..0..0....0..0..0..0..1..0
..2..0..0..2..2..1....0..0..1..2..0..2....0..2..2..1..2..2....0..2..2..2..1..1
..1..0..1..0..1..1....0..0..1..0..2..2....0..0..0..1..1..1....0..0..1..0..2..1

Crossrefs

Sequence in context: A330713 A253338 A252960 * A258605 A258604 A093225

Adjacent sequences: A258609 A258610 A258611 * A258613 A258614 A258615

Keyword

nonn,tabl

Author

R. H. Hardin, Jun 05 2015

Status

approved