A195967 Number of nX6 0..4 arrays with each element equal to the number its horizontal and vertical neighbors equal to itself

2, 2, 25, 118, 417, 746, 2906, 10899, 31616, 88860, 304443, 1013184, 3033869, 9608917, 30808108, 97784400, 307889267, 971517454, 3088012323, 9793418941, 30915299775, 97797652156, 310274504503, 981649179185, 3105621771879

Offset

1,1

Comments

Column 6 of A195969

Links

R. H. Hardin, Table of n, a(n) for n = 1..200

Example

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

Crossrefs

Sequence in context: A032336 A032084 A306062 * A301602 A354898 A120979

Adjacent sequences: A195964 A195965 A195966 * A195968 A195969 A195970

Keyword

nonn

Author

R. H. Hardin Sep 25 2011

Status

approved