login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A278610 T(n,k)=Number of nXk 0..3 arrays with rows and columns in lexicographic nondecreasing order but with exactly three mistakes. 7
0, 0, 0, 0, 0, 0, 1, 395, 395, 1, 56, 16224, 53360, 16224, 56, 728, 354696, 5985658, 5985658, 354696, 728, 5328, 6208804, 442089480, 1608427228, 442089480, 6208804, 5328, 27876, 94510277, 23974522382, 371601597959, 371601597959, 23974522382 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,8

COMMENTS

Table starts

.....0..........0..............0...................1......................56

.....0..........0............395...............16224..................354696

.....0........395..........53360.............5985658...............442089480

.....1......16224........5985658..........1608427228............371601597959

....56.....354696......442089480........371601597959.........267157122056196

...728....6208804....23974522382......70116431548595......170796560376996116

..5328...94510277..1079873605870...10962535851392548....95557122165321489360

.27876.1235465691.43032494710944.1484609498751465944.46856747385448318164254

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..97

FORMULA

Empirical for column k:

k=1: [polynomial of degree 15]

k=2: [polynomial of degree 63]

EXAMPLE

Some solutions for n=3 k=4

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

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

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

CROSSREFS

Sequence in context: A270843 A267965 A268030 * A278605 A278269 A278606

Adjacent sequences:  A278607 A278608 A278609 * A278611 A278612 A278613

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Nov 23 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 25 18:25 EDT 2022. Contains 354071 sequences. (Running on oeis4.)