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!)
A251167 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with no 2X2 subblock having the maximum of its diagonal elements greater than the absolute difference of its antidiagonal elements 9
96, 552, 552, 2658, 5054, 2658, 12001, 32083, 32083, 12001, 55131, 172457, 231618, 172457, 55131, 257417, 966212, 1452052, 1452052, 966212, 257417, 1201970, 5804029, 10194430, 12191612, 10194430, 5804029, 1201970, 5597648, 35120036 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.......96........552........2658........12001..........55131..........257417

......552.......5054.......32083.......172457.........966212.........5804029

.....2658......32083......231618......1452052.......10194430........77352519

....12001.....172457.....1452052.....12191612......109831980......1007412975

....55131.....966212....10194430....109831980.....1203787298.....13378444373

...257417....5804029....77352519...1007412975....13378444373....190531611192

..1201970...35120036...572903455...9109822648...151628039982...2775154020785

..5597648..209215196..4142817734..82472830043..1734021265531..39368472654312

.26056421.1237992428.30044582531.753010290232.19751591932782.550648311345318

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..263

FORMULA

Empirical for column k:

k=1: [linear recurrence of order 11] for n>13

k=2: [order 24] for n>27

k=3: [order 51] for n>54

EXAMPLE

Some solutions for n=2 k=4

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

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

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

CROSSREFS

Sequence in context: A234076 A216372 A183684 * A251160 A233029 A216106

Adjacent sequences:  A251164 A251165 A251166 * A251168 A251169 A251170

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Nov 30 2014

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 August 9 13:57 EDT 2020. Contains 336323 sequences. (Running on oeis4.)