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
Keywords
Examples
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
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
- R. H. Hardin, Empirical polynomial of degree 101
Crossrefs
Cf. A278855.
Formula
Empirical polynomial of degree 101 (see link above)
Comments