A199098 Number of nX5 0..2 arrays with values 0..2 introduced in row major order, the number of instances of each value within one of each other, and every element equal to two or fewer horizontal or vertical neighbors

15, 2040, 101460, 38753124, 5569129037, 287771242262, 123022787797053, 18696906414385635, 993411195529074382, 446003814998395266655, 69706902367712447882179, 3759620769505560043717063

Offset

1,1

Comments

Column 5 of A199101

Links

Table of n, a(n) for n=1..12.

Example

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

Crossrefs

Sequence in context: A282946 A319623 A208875 * A208784 A126681 A263162

Adjacent sequences: A199095 A199096 A199097 * A199099 A199100 A199101

Keyword

nonn

Author

R. H. Hardin Nov 02 2011

Status

approved