A278552 Number of n X 6 0..3 arrays with rows and columns in lexicographic nondecreasing order but with exactly two mistakes.

2128, 4880813, 9647190761, 19154084929099, 35461508433808988, 57645968168131680420, 82417111259567413303205, 106532272120153272376122742, 128078032305270145287175836766

Offset

1,1

Comments

Column 6 of A278553.

Links

R. H. Hardin, Table of n, a(n) for n = 1..18

Example

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

Crossrefs

Cf. A278553.

Sequence in context: A248485 A321117 A337644 * A278797 A251134 A338070

Adjacent sequences: A278549 A278550 A278551 * A278553 A278554 A278555

Keyword

nonn

Author

R. H. Hardin, Nov 23 2016

Status

approved