A278384 Number of nX7 0..1 arrays with rows and columns in lexicographic nondecreasing order but with exactly three mistakes.

8, 5936, 652343, 50473056, 3325788157, 198563803019, 11105331450864, 586395701904408, 29015321337746085, 1335864857344408243, 57236190892283185233, 2296849324984530935992, 87126825773953105905476

Offset: 1

Author

R. H. Hardin, Nov 20 2016

Keywords

• nonn

Comments

Column 7 of A278385.

Examples

			Some solutions for n=2
..0..1..0..1..1..0..1. .1..0..1..1..1..1..1. .0..1..1..1..1..0..1
..0..0..0..1..1..1..0. .0..0..1..1..0..0..0. .0..0..0..1..0..0..1
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..79

Crossrefs

Cf. A278385.