A235547 Number of (n+1)X(7+1) 0..1 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing rowwise and columnwise

6109, 247639, 16395328, 1173374675, 99992110087, 8016394678681, 628185457112919, 44562259061950041, 2936802363619572484, 176432966913775616838, 9825785991638115957212, 506336302318261051162700

Offset

1,1

Comments

Column 7 of A235548

Links

Table of n, a(n) for n=1..12.

Example

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

Crossrefs

Sequence in context: A201225 A031619 A235764 * A345186 A251368 A366516

Adjacent sequences: A235544 A235545 A235546 * A235548 A235549 A235550

Keyword

nonn

Author

R. H. Hardin, Jan 12 2014

Status

approved