login
This site is supported by donations to The OEIS Foundation.

 

Logo

Please make a donation to keep the OEIS running. We are now in our 55th year. In the past year we added 12000 new sequences and reached 8000 citations (which often say "discovered thanks to the OEIS"). We need to raise money to hire someone to manage submissions, which would reduce the load on our editors and speed up editing.
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A237375 T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the maximum plus the upper median plus the lower median plus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one 8
81, 288, 288, 1024, 1164, 1024, 3840, 4760, 4760, 3840, 14400, 20812, 22676, 20812, 14400, 53760, 90528, 116880, 116880, 90528, 53760, 200704, 393456, 597492, 723928, 597492, 393456, 200704, 752640, 1707488, 3049632, 4429368, 4429368, 3049632 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.......81.......288.......1024........3840........14400.........53760

......288......1164.......4760.......20812........90528........393456

.....1024......4760......22676......116880.......597492.......3049632

.....3840.....20812.....116880......723928......4429368......27053348

....14400.....90528.....597492.....4429368.....32296444.....234383800

....53760....393456....3049632....27053348....234383800....2025855560

...200704...1707488...15573476...165467520...1707821384...17548046424

...752640...7460608...80201408..1026092552..12676271720..155695765032

..2822400..32509760..411286836..6319203136..93083424892.1358174204976

.10536960.141269808.2099304960.38680736568.676587278680

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..112

FORMULA

Empirical for column k:

k=1: a(n) = 196*a(n-4) for n>6

k=2: a(n) = 370*a(n-4) -3916*a(n-8) +6904*a(n-12) -1984*a(n-16) for n>18

k=3: [order 92] for n>94

EXAMPLE

Some solutions for n=3 k=4

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

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

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

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

CROSSREFS

Sequence in context: A236802 A236875 A236868 * A237368 A017078 A236055

Adjacent sequences:  A237372 A237373 A237374 * A237376 A237377 A237378

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Feb 07 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 December 11 07:38 EST 2019. Contains 329914 sequences. (Running on oeis4.)