A183378 Number of nX5 binary arrays with no element equal to the mod 3 sum of its king-move neighbors.
4, 37, 143, 627, 2767, 11345, 51706, 223151, 974387, 4317835, 18935262, 83405497, 367312087, 1616039971, 7119896616, 31348982360, 138041608632, 607987526596, 2677387312069, 11791160763537, 51928980096226, 228692213910063
Offset: 1
Keywords
Examples
Some solutions for 7X5 ..0..1..1..0..1....0..1..0..1..0....1..0..0..1..0....0..1..1..0..0 ..1..0..1..1..1....1..0..1..1..0....0..0..0..0..0....0..0..1..1..1 ..1..1..1..1..0....0..1..1..0..0....0..1..0..0..0....0..1..1..1..1 ..0..1..0..1..1....1..1..1..0..0....0..1..1..1..0....0..0..1..1..1 ..1..0..1..1..0....0..1..1..0..1....0..0..0..0..1....0..1..1..0..0 ..1..0..1..1..0....1..1..0..1..1....0..0..0..1..1....1..0..0..0..0 ..0..1..0..1..1....1..0..1..0..1....1..0..0..0..0....1..1..0..1..0
Links
- R. H. Hardin, Table of n, a(n) for n = 1..200
Comments