login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A278655 Number of nX7 0..2 arrays with rows in nondecreasing lexicographic order and columns in nonincreasing lexicographic order, but with exactly three mistakes. 1
504, 2080575, 2864009499, 3014441325194, 2738085955639984, 2208684003726307854, 1606277016357286546242, 1064650757873104185361759, 648100425195945762366583042, 364419942118182508200030228710 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A278656.

LINKS

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

EXAMPLE

Some solutions for n=1

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

CROSSREFS

Cf. A278656.

Sequence in context: A289637 A226266 A278371 * A068299 A003798 A003791

Adjacent sequences:  A278652 A278653 A278654 * A278656 A278657 A278658

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 25 2016

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 17 01:53 EDT 2021. Contains 347478 sequences. (Running on oeis4.)