A278411 Number of nX5 0..2 arrays with rows and columns in lexicographic nondecreasing order but with exactly two mistakes.

90, 22267, 3576730, 514122657, 62922179364, 6584300364020, 615691843257769, 53477639726024161, 4387410446730955493, 339567886171232998387, 24599607739826174384488, 1657477158622895134648601

Offset

1,1

Comments

Column 5 of A278414.

Links

R. H. Hardin, Table of n, a(n) for n = 1..99

Example

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

Crossrefs

Cf. A278414.

Sequence in context: A295594 A200503 A199229 * A278631 A323317 A246634

Adjacent sequences: A278408 A278409 A278410 * A278412 A278413 A278414

Keyword

nonn

Author

R. H. Hardin, Nov 21 2016

Status

approved