A223879 Number of 5Xn 0..3 arrays with rows, diagonals and antidiagonals unimodal.
1024, 1048576, 152918517, 5941888105, 122550633425, 1705349067795, 18196418303111, 160679898741339, 1229765413154086, 8391601872683197, 51974570843642850, 295702768916620339, 1558622615940769358
Offset: 1
Keywords
Examples
Some solutions for n=3 ..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0 ..0..2..0....0..0..2....0..2..2....0..2..2....0..0..0....0..2..0....0..0..0 ..1..2..1....2..2..2....0..0..0....0..2..2....2..0..0....3..0..0....2..2..1 ..0..1..0....0..2..3....0..0..2....2..2..1....0..3..2....3..2..2....1..3..0 ..0..2..1....3..3..3....1..1..1....1..2..0....1..3..0....0..3..2....0..1..2
Links
- R. H. Hardin, Table of n, a(n) for n = 1..30
Comments