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!)
A185750 T(n,k)=Number of (n+1)X(k+1) binary arrays with every 2X2 subblock trace equal to some horizontal or vertical neighbor 2X2 subblock trace 10
0, 24, 24, 40, 104, 40, 144, 544, 544, 144, 344, 2568, 4056, 2568, 344, 1000, 12656, 33768, 33768, 12656, 1000, 2688, 62112, 273928, 458320, 273928, 62112, 2688, 7528, 304584, 2237680, 6315600, 6315600, 2237680, 304584, 7528, 20648, 1494072 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Table starts

.....0.......24.........40...........144.............344...............1000

....24......104........544..........2568...........12656..............62112

....40......544.......4056.........33768..........273928............2237680

...144.....2568......33768........458320.........6315600...........86568360

...344....12656.....273928.......6315600.......145680504.........3364965408

..1000....62112....2237680......86568360......3364965408.......130602553784

..2688...304584...18242392....1188841336.....77691779712......5075186680192

..7528..1494072..148782184...16318664224...1793861476320....197100662468008

.20648..7329384.1213377952..224021622784..41418279791200...7655862674452520

.57040.35956128.9895860408.3075298469624.956315991414968.297368484380040776

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..219

EXAMPLE

Some solutions for 4X3

..1..1..0....0..1..0....1..0..1....0..0..0....1..0..0....0..0..1....0..0..1

..1..1..1....0..1..0....1..1..1....1..0..0....1..0..1....0..0..0....0..1..1

..0..1..0....1..1..1....1..1..0....1..0..0....1..1..1....0..0..1....0..0..0

..0..1..0....0..1..1....1..0..0....0..0..0....1..1..0....0..1..1....1..0..1

CROSSREFS

Sequence in context: A188311 A185497 A186939 * A040553 A022358 A122505

Adjacent sequences:  A185747 A185748 A185749 * A185751 A185752 A185753

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Feb 01 2011

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 June 1 04:57 EDT 2020. Contains 334758 sequences. (Running on oeis4.)