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A225981 Number of nX7 binary arrays whose sum with another nX7 binary array containing no more than two 1s has rows and columns in lexicographically nondecreasing order 0
64, 1616, 49811, 1825607, 69784592, 2513743785, 80901937149, 2279339811483, 56056577764123, 1210023577040820, 23129995837890549, 395389054254892996, 6101927873439814335, 85761387564101647001 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A225982

LINKS

Table of n, a(n) for n=1..14.

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A224282 A224205 A162994 * A232427 A194496 A297092

Adjacent sequences:  A225978 A225979 A225980 * A225982 A225983 A225984

KEYWORD

nonn

AUTHOR

R. H. Hardin May 22 2013

STATUS

approved

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Last modified May 19 05:04 EDT 2022. Contains 353826 sequences. (Running on oeis4.)