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A278550 Number of nX4 0..3 arrays with rows and columns in lexicographic nondecreasing order but with exactly two mistakes. 1
65, 25402, 6207774, 1116456061, 157222953688, 19154084929099, 2139517647414832, 221564412439675221, 21066414746632008713, 1822505605184517876456, 143141100456641625969627 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A278553.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..131

EXAMPLE

Some solutions for n=2

..3..0..2..2. .0..2..1..1. .1..2..2..2. .2..0..2..2. .1..3..1..3

..0..2..1..1. .0..0..2..2. .3..3..2..0. .1..0..0..0. .0..0..3..1

CROSSREFS

Cf. A278553.

Sequence in context: A283580 A308491 A084225 * A177652 A278795 A289946

Adjacent sequences:  A278547 A278548 A278549 * A278551 A278552 A278553

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 23 2016

STATUS

approved

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Last modified October 19 22:05 EDT 2021. Contains 348095 sequences. (Running on oeis4.)