A278362 Number of nX7 0..1 arrays with rows and columns in lexicographic nondecreasing order but with exactly one mistake.

56, 1590, 46236, 1429751, 44208465, 1349344763, 41820621848, 1335072188627, 42737962734110, 1315545171895930, 37821745334006837, 1003095347536883940, 24492157793238215600, 552053288766420787482, 11538125658500929877976

Offset

1,1

Comments

Column 7 of A278363.

Links

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

Example

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

Crossrefs

Cf. A278363.

Sequence in context: A233981 A035723 A035799 * A017719 A234761 A290607

Adjacent sequences: A278359 A278360 A278361 * A278363 A278364 A278365

Keyword

nonn

Author

R. H. Hardin, Nov 19 2016

Status

approved