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!)
A187940 T(n,k)=Number of (n+2)X(k+2) binary arrays with every 2X2 subblock sum equal to some diagonal or antidiagonal neighbor 2X2 subblock sum 10
48, 44, 44, 304, 104, 304, 784, 704, 704, 784, 3188, 2532, 7616, 2532, 3188, 10296, 14308, 50802, 50802, 14308, 10296, 38020, 64024, 435194, 544222, 435194, 64024, 38020, 131184, 328116, 3394156, 7443374, 7443374, 3394156, 328116, 131184 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

......48......44.......304........784.......3188......10296.......38020

......44.....104.......704.......2532......14308......64024......328116

.....304.....704......7616......50802.....435194....3394156....27734942

.....784....2532.....50802.....544222....7443374...94215422..1239704056

....3188...14308....435194....7443374..167909728.3490809390.75359054474

...10296...64024...3394156...94215422.3490809390

...38020..328116..27734942.1239704056

..131184.1509288.222519352

..470896.7610052

.1657548

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..60

EXAMPLE

Some solutions for 5X4

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

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

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

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

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

CROSSREFS

Sequence in context: A156461 A347557 A300143 * A187932 A165869 A121377

Adjacent sequences:  A187937 A187938 A187939 * A187941 A187942 A187943

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Mar 16 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 January 26 07:24 EST 2022. Contains 350573 sequences. (Running on oeis4.)