A223806 Number of 7Xn 0..3 arrays with rows and antidiagonals unimodal

16384, 268435456, 400006582368, 108631485025292, 11005258705825234, 584566278788358762, 19618352087687868206, 465158078382468013314, 8382245182389408629393, 120791502810712490663930

Offset

1,1

Comments

Row 7 of A223801

Links

R. H. Hardin, Table of n, a(n) for n = 1..23

Example

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

Crossrefs

Sequence in context: A017323 A017443 A017575 * A223584 A185566 A160868

Adjacent sequences: A223803 A223804 A223805 * A223807 A223808 A223809

Keyword

nonn

Author

R. H. Hardin Mar 27 2013

Status

approved