A223806 Number of 7Xn 0..3 arrays with rows and antidiagonals unimodal.
16384, 268435456, 400006582368, 108631485025292, 11005258705825234, 584566278788358762, 19618352087687868206, 465158078382468013314, 8382245182389408629393, 120791502810712490663930
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..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0 ..0..0..0....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..2..0....0..2..0....0..2..0....0..2..0....0..2..0 ..0..2..2....0..0..1....2..2..2....1..2..0....0..2..0....0..2..1....1..0..0 ..1..1..0....1..2..3....3..2..0....1..3..0....3..3..1....1..2..3....3..3..3 ..0..2..0....0..3..2....3..2..0....3..2..1....1..2..2....2..2..1....2..0..0
Links
- R. H. Hardin, Table of n, a(n) for n = 1..23
Comments