A188414 Number of (7*n)X7 binary arrays with rows in nonincreasing order, n ones in every column and no more than 3 ones in any row

652, 282349, 57967660, 6720357785, 498407294632, 25784105550034, 990154499577167

Offset

1,1

Comments

Column 7 of A188416

Links

Table of n, a(n) for n=1..7.

Example

Some solutions for 14X7
..1..0..0..0..0..1..1....1..0..0..0..0..1..0....1..0..0..1..0..0..1
..1..0..0..0..0..0..0....1..0..0..0..0..0..0....1..0..0..0..0..0..1
..0..1..0..1..0..0..0....0..1..0..1..1..0..0....0..1..0..1..1..0..0
..0..1..0..0..0..1..0....0..1..0..0..0..0..1....0..1..0..0..0..0..0
..0..0..1..0..0..0..0....0..0..1..1..0..0..0....0..0..1..0..1..0..0
..0..0..1..0..0..0..0....0..0..1..0..0..0..1....0..0..1..0..0..1..0
..0..0..0..1..1..0..0....0..0..0..0..1..0..0....0..0..0..0..0..1..0
..0..0..0..0..1..0..0....0..0..0..0..0..1..0....0..0..0..0..0..0..0
..0..0..0..0..0..0..1....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..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

Crossrefs

Sequence in context: A282558 A204505 A350979 * A089673 A104823 A198170

Adjacent sequences: A188411 A188412 A188413 * A188415 A188416 A188417

Keyword

nonn

Author

R. H. Hardin Mar 30 2011

Status

approved