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!)
A189201 Number of 8Xn binary arrays without the pattern 0 0 1 vertically or antidiagonally 1

%I #5 Mar 31 2012 12:36:15

%S 88,7744,455376,25421672,1372985912,73539558380,3925306136096,

%T 209311662962608,11157624191092952,594711699220463696,

%U 31697676855899289808,1689445004590812894576,90044940251851683056384

%N Number of 8Xn binary arrays without the pattern 0 0 1 vertically or antidiagonally

%C Row 8 of A189196

%H R. H. Hardin, <a href="/A189201/b189201.txt">Table of n, a(n) for n = 1..200</a>

%F Empirical: a(n) = 88*a(n-1) -2026*a(n-2) +3440*a(n-3) +398024*a(n-4) -4372260*a(n-5) +1662056*a(n-6) +229365552*a(n-7) -1244207140*a(n-8) -3287450640*a(n-9) +66303169320*a(n-10) -269619866448*a(n-11) -20716498800*a(n-12) +3112092680256*a(n-13) -6535480153936*a(n-14) -7661455708576*a(n-15) +40112226193344*a(n-16) -24807334784832*a(n-17) -76731061646720*a(n-18) +158356706608640*a(n-19) -50189552815744*a(n-20) -244506307989760*a(n-21) +288216118457600*a(n-22) -29833514304512*a(n-23) +80794912975360*a(n-24) -13804549521408*a(n-25) -380176960995328*a(n-26) +1693040995549184*a(n-27) -3430504071266304*a(n-28) -2105843944267776*a(n-29) +10231173188296704*a(n-30) -2203984954540032*a(n-31) -11231589378785280*a(n-32) +6937259490410496*a(n-33) +3935367177830400*a(n-34) -4614787858169856*a(n-35) +828100528046080*a(n-36) +243871304908800*a(n-37) +64184423284736*a(n-38) -108500453687296*a(n-39) +29225708945408*a(n-40) -2452157890560*a(n-41)

%e Some solutions for 8X3

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

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

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Apr 18 2011

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 25 07:07 EDT 2024. Contains 371964 sequences. (Running on oeis4.)