A223724 Number of nX7 0..2 arrays with rows, antidiagonals and columns unimodal

239, 57121, 5087912, 218619076, 5733691150, 105179942478, 1461411174370, 16206659678557, 148957213473086, 1167498177877341, 7978569040814189, 48389995885548620, 264233150465396312, 1314507634444102055

Offset

1,1

Comments

Column 7 of A223725

Links

R. H. Hardin, Table of n, a(n) for n = 1..28

Example

Some solutions for n=3
..0..0..0..0..0..0..0....0..0..0..1..2..2..2....0..0..0..2..2..1..0
..0..0..0..0..1..1..1....0..0..0..0..2..2..1....0..0..0..1..2..2..1
..0..0..1..2..0..0..0....0..0..0..0..0..2..0....0..0..1..1..1..2..2

Crossrefs

Sequence in context: A254298 A181855 A223741 * A223788 A223830 A223974

Adjacent sequences: A223721 A223722 A223723 * A223725 A223726 A223727

Keyword

nonn

Author

R. H. Hardin Mar 26 2013

Status

approved