A278308 Number of nX7 0..2 arrays with rows and columns in lexicographic nondecreasing order but with exactly one mistake.

504, 197981, 114457714, 69684770828, 38819080346585, 20065923383306483, 10174217016822816668, 5193800251722254864596, 2618709455820562585030428, 1260058503482337718156082135, 564882872428920086722942207177

Offset

1,1

Comments

Column 7 of A278309.

Links

R. H. Hardin, Table of n, a(n) for n = 1..19

Example

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

Crossrefs

Cf. A278309.

Sequence in context: A278626 A288851 A105097 * A000706 A289637 A226266

Adjacent sequences: A278305 A278306 A278307 * A278309 A278310 A278311

Keyword

nonn

Author

R. H. Hardin, Nov 17 2016

Status

approved