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A188420 Number of (5*n)Xn binary arrays with rows in nonincreasing order, 5 ones in every column and no more than 3 ones in any row 0
1, 6, 150, 11712, 2181522, 793369090, 498407294632, 497114063711190 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 5 of A188416

LINKS

Table of n, a(n) for n=1..8.

EXAMPLE

All solutions for 10X2

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

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

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

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A013301 A233734 A227044 * A089482 A126679 A232689

Adjacent sequences:  A188417 A188418 A188419 * A188421 A188422 A188423

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 30 2011

STATUS

approved

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Last modified April 22 14:20 EDT 2021. Contains 343177 sequences. (Running on oeis4.)