A278368 Number of nX4 0..2 arrays with rows and columns in lexicographic nondecreasing order but with exactly three mistakes.

0, 1465, 184341, 16073852, 1185617520, 71569971497, 3591161445506, 156509651392363, 6152096549069001, 222794729697445622, 7488691646485617892, 233747568592586647588, 6769664767684601132112, 181975875729049004082635

Offset

1,2

Comments

Column 4 of A278372.

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

Some solutions for n=3
..1..0..2..2. .1..1..0..0. .0..1..1..0. .2..2..2..2. .0..2..2..1
..0..1..2..0. .0..1..1..0. .2..2..2..0. .0..0..1..0. .0..2..0..1
..0..1..2..1. .0..1..1..1. .0..2..1..2. .2..1..2..1. .1..1..0..0

Crossrefs

Cf. A278372.

Sequence in context: A237483 A280906 A321010 * A206862 A206956 A207988

Adjacent sequences: A278365 A278366 A278367 * A278369 A278370 A278371

Keyword

nonn

Author

R. H. Hardin, Nov 19 2016

Status

approved