A225979 Number of nX5 binary arrays whose sum with another nX5 binary array containing no more than two 1s has rows and columns in lexicographically nondecreasing order

26, 350, 4722, 61808, 737893, 7718077, 69784592, 546720823, 3748375290, 22776885553, 124247348589, 615678539423, 2800456394451, 11798875157732, 46405595059222, 171524109659874, 599254527583339, 1988834906193438

Offset

1,1

Comments

Column 5 of A225982

Links

R. H. Hardin, Table of n, a(n) for n = 1..58

R. H. Hardin, Empirical polynomial of degree 33

Formula

Empirical polynomial of degree 33 (see link above)

Example

Some solutions for n=3
..0..0..1..1..1....0..0..0..1..0....0..0..1..1..1....1..1..1..1..0
..0..0..0..0..0....1..1..1..1..1....0..0..0..1..1....0..1..1..1..1
..1..0..0..0..0....1..1..0..1..1....1..0..1..1..1....1..1..1..1..1

Crossrefs

Sequence in context: A161526 A161933 A162368 * A162718 A010978 A022590

Adjacent sequences: A225976 A225977 A225978 * A225980 A225981 A225982

Keyword

nonn

Author

R. H. Hardin May 22 2013

Status

approved