A278371 Number of nX7 0..2 arrays with rows and columns in lexicographic nondecreasing order but with exactly three mistakes.

504, 1734714, 2705568336, 3591161445506, 4136952690048454, 4248736162137280596, 4011624465030914131298, 3517606541854514840072201, 2856064084629269952289923184, 2141447684516773807277095689406

Offset

1,1

Comments

Column 7 of A278372.

Links

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

Example

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

Crossrefs

Cf. A278372.

Sequence in context: A000706 A289637 A226266 * A278655 A068299 A003798

Adjacent sequences: A278368 A278369 A278370 * A278372 A278373 A278374

Keyword

nonn

Author

R. H. Hardin, Nov 19 2016

Status

approved