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!)
A236137 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the maximum plus the lower median minus the upper median minus the minimum of every 2X2 subblock 4
256, 2816, 2816, 31552, 67264, 31552, 351872, 1611168, 1611168, 351872, 3932416, 38691488, 83422344, 38691488, 3932416, 43917824, 929734720, 4324702912, 4324702912, 929734720, 43917824, 490505216, 22330450944, 224789303820 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

........256.........2816..........31552.........351872........3932416

.......2816........67264........1611168.......38691488......929734720

......31552......1611168.......83422344.....4324702912...224789303820

.....351872.....38691488.....4324702912...487008949768.54970653029220

....3932416....929734720...224789303820.54970653029220

...43917824..22330450944.11667447732440

..490505216.536187075776

.5477885952

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..40

FORMULA

Empirical for column k:

k=1: [linear recurrence of order 17]

EXAMPLE

Some solutions for n=2 k=4

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

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

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

CROSSREFS

Sequence in context: A236124 A236949 A236942 * A236134 A236588 A236585

Adjacent sequences:  A236134 A236135 A236136 * A236138 A236139 A236140

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Jan 19 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 September 23 04:19 EDT 2021. Contains 347609 sequences. (Running on oeis4.)