A183438 Number of nX5 binary arrays with every 1 having exactly one king-move neighbor equal to 1

6, 69, 273, 1620, 10459, 56472, 329520, 1939754, 11093629, 64352261, 373456149, 2157426998, 12495027985, 72358519251, 418731599880, 2424245121120, 14034463137812, 81239767215253, 470300385462933, 2722552167523200

Offset

1,1

Comments

Column 5 of A183442

Links

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

Formula

Empirical: a(n)=2*a(n-1)+8*a(n-2)+81*a(n-3)+17*a(n-4)+37*a(n-5)-840*a(n-6)-78*a(n-7)-399*a(n-8)+3112*a(n-9)-36*a(n-10)-197*a(n-11)-2333*a(n-12)-287*a(n-13)+99*a(n-14)+1081*a(n-15)-46*a(n-16)-51*a(n-17)-230*a(n-18)+20*a(n-19)+9*a(n-20)+30*a(n-21)

Example

Some solutions for 3X5
..0..0..0..0..1....0..0..0..1..0....0..0..0..1..1....0..0..0..0..1
..0..0..0..1..0....0..0..0..1..0....1..0..0..0..0....0..1..0..1..0
..1..1..0..0..0....1..1..0..0..0....1..0..0..0..0....1..0..0..0..0

Crossrefs

Sequence in context: A113692 A003362 A197170 * A296016 A288719 A201535

Adjacent sequences: A183435 A183436 A183437 * A183439 A183440 A183441

Keyword

nonn

Author

R. H. Hardin Jan 04 2011

Status

approved