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!)
A183748 T(n,k) = number of (n+1) X (k+1) 0..2 arrays with equal numbers of 2 X 2 subblocks with sum over 4 and with sum under 4. 10
19, 147, 147, 1041, 2553, 1041, 10231, 55857, 55857, 10231, 76355, 1389521, 3631179, 1389521, 76355, 639129, 33587307, 263234281, 263234281, 33587307, 639129, 5262685, 829488619, 19216153673, 55212617129, 19216153673, 829488619, 5262685 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.........19.............147.................1041...................10231

........147............2553................55857.................1389521

.......1041...........55857..............3631179...............263234281

......10231.........1389521............263234281.............55212617129

......76355........33587307..........19216153673..........12024860660055

.....639129.......829488619........1426003404195........2669694620697299

....5262685.....20777533329......107098914678533......600788747889666009

...45272931....526362000253.....8126407481779133...136582348832416596017

..382928623..13427566678795...621298001439642413.31294543292138683447483

.3284527183.344521962594233.47785646470869878477

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..83

EXAMPLE

Some solutions for 4 X 3:

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

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

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

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

...

...E..P.......P..E.......M..E.......M..M.......P..M.......E..P.......P..E...

...M..P.......E..M.......E..M.......E..E.......E..M.......M..E.......P..E...

...M..E.......P..M.......P..P.......P..P.......P..E.......E..E.......M..M...

CROSSREFS

Sequence in context: A093646 A264679 A200530 * A241620 A069423 A183740

Adjacent sequences:  A183745 A183746 A183747 * A183749 A183750 A183751

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Jan 06 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 October 27 23:26 EDT 2020. Contains 338047 sequences. (Running on oeis4.)