A181016 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A181016

Number of nX(n+5) binary matrices with rows and columns each in strictly increasing order as binary numbers and every 0 adjacent to a 1 and every 1 adjacent to a 0

0, 0, 0, 0, 0, 0, 38, 17807, 10896780, 9903117503, 18595256962681

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,7

COMMENTS

Superdiagonal 5 of A181011

LINKS

Table of n, a(n) for n=1..11.

EXAMPLE

Some solutions for 7X12

..0..1..1..1..1..1..1..1..1..1..1..1....0..1..1..1..1..1..1..1..1..1..1..1

..1..0..0..0..0..0..0..0..0..0..0..0....1..0..0..0..0..0..0..0..0..0..0..0