A220246 Equals two maps: number of nX5 binary arrays indicating the locations of corresponding elements equal to exactly two of their king-move neighbors in a random 0..1 nX5 array

7, 85, 4467, 64258, 942945, 16925474, 267978208

Offset

1,1

Comments

Column 5 of A220247

Links

Table of n, a(n) for n=1..7.

Example

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

Crossrefs

Sequence in context: A207214 A000686 A102923 * A196257 A296382 A296639

Adjacent sequences: A220243 A220244 A220245 * A220247 A220248 A220249

Keyword

nonn

Author

R. H. Hardin Dec 08 2012

Status

approved