A278852 Number of nX5 0..1 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly three mistakes.

0, 239, 15066, 449677, 9317846, 154090507, 2167109763, 26799758534, 297417275848, 3004658410735, 27940725989130, 241350612592135, 1951440294582041, 14865802497447044, 107290958051308517

Offset

1,2

Comments

Column 5 of A278855.

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

R. H. Hardin, Empirical polynomial of degree 101

Formula

Empirical polynomial of degree 101 (see link above)

Example

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

Crossrefs

Cf. A278855.

Sequence in context: A224056 A224309 A224373 * A163041 A069364 A163052

Adjacent sequences: A278849 A278850 A278851 * A278853 A278854 A278855

Keyword

nonn

Author

R. H. Hardin, Nov 29 2016

Status

approved