A233311 T(n,k)=Number of (n+1)X(k+1) 0..4 arrays with row and column sums nondecreasing, and no adjacent elements equal

92, 463, 463, 2311, 7248, 2311, 9822, 93533, 93533, 9822, 41192, 1112270, 4148253, 1112270, 41192, 160280, 11993847, 150257461, 150257461, 11993847, 160280, 617500, 121586107, 5127100320, 16785959715, 5127100320, 121586107, 617500

Offset

1,1

Comments

Table starts

.....92.......463.......2311........9822......41192.......160280.....617500

....463......7248......93533.....1112270...11993847....121586107.1175160522

...2311.....93533....4148253...150257461.5127100320.162455024209

...9822...1112270..150257461.16785959715

..41192..11993847.5127100320

.160280.121586107

.617500

Links

R. H. Hardin, Table of n, a(n) for n = 1..31

Example

Some solutions for n=2 k=4
..0..1..0..1..3....0..1..2..3..0....0..1..0..2..3....0..1..0..3..1
..4..0..4..2..4....4..0..3..0..4....1..3..2..3..1....4..0..3..0..4
..1..4..3..4..3....1..4..0..4..3....3..1..4..1..2....0..3..1..4..3

Crossrefs

Sequence in context: A302351 A100169 A100170 * A233309 A205992 A200425

Adjacent sequences: A233308 A233309 A233310 * A233312 A233313 A233314

Keyword

nonn,tabl

Author

R. H. Hardin, Dec 07 2013

Status

approved