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!)
A219451 T(n,k)=Unchanging value maps: number of nXk binary arrays indicating the locations of corresponding elements unequal to no king-move neighbor in a random 0..2 nXk array 6

%I

%S 1,2,2,4,2,4,7,4,4,7,12,7,16,7,12,21,12,43,43,12,21,37,21,122,169,122,

%T 21,37,65,37,345,665,665,345,37,65,114,65,979,2603,3808,2603,979,65,

%U 114,200,114,2791,10421,21219,21219,10421,2791,114,200,351,200,7936,41777,121107

%N T(n,k)=Unchanging value maps: number of nXk binary arrays indicating the locations of corresponding elements unequal to no king-move neighbor in a random 0..2 nXk array

%C Table starts

%C ...1...2......4........7........12..........21............37.............65

%C ...2...2......4........7........12..........21............37.............65

%C ...4...4.....16.......43.......122.........345...........979...........2791

%C ...7...7.....43......169.......665........2603.........10421..........41777

%C ..12..12....122......665......3808.......21219........121107.........694655

%C ..21..21....345.....2603.....21219......166748.......1344235.......10913024

%C ..37..37....979....10421....121107.....1344235......15411145......178002713

%C ..65..65...2791....41777....694655....10913024.....178002713.....2929991369

%C .114.114...7936...166911...3974138....88366783....2049830785....48064752835

%C .200.200..22540...665377..22659834...712584163...23489245559...783922598539

%C .351.351..64031..2653983.129205873..5745262476..269104272557.12780990572538

%C .616.616.181974.10593377.737415730.46374678582.3087159491955

%H R. H. Hardin, <a href="/A219451/b219451.txt">Table of n, a(n) for n = 1..179</a>

%e Some solutions for n=3 k=4

%e ..0..0..0..1....1..1..0..0....0..0..1..1....0..0..1..1....1..1..0..0

%e ..0..0..0..1....1..1..0..0....0..0..0..0....0..0..0..1....1..1..0..0

%e ..1..1..1..1....1..1..0..0....1..1..0..0....0..0..0..1....1..1..1..1

%Y Column 1 is A005251(n+2)

%Y Column 2 is A005251(n+2) for n>1

%Y Column 3 is A219398

%K nonn,tabl

%O 1,2

%A _R. H. Hardin_ Nov 20 2012

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 12:06 EDT 2021. Contains 347616 sequences. (Running on oeis4.)