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!)
A248454 Number of length 6+5 0..n arrays with no three disjoint pairs in any consecutive six terms having the same sum 1

%I #4 Oct 06 2014 18:50:11

%S 292,40326,1576148,22934730,200399588,1223547300,5782408256,

%T 22500347404,75363945904,223666265592,601291010636,1488546210744,

%U 3436733966496,7474105562402,15434403324952,30460735707654,57761443190104

%N Number of length 6+5 0..n arrays with no three disjoint pairs in any consecutive six terms having the same sum

%C Row 6 of A248448

%H R. H. Hardin, <a href="/A248454/b248454.txt">Table of n, a(n) for n = 1..27</a>

%e Some solutions for n=2

%e ..2....0....1....0....0....0....0....1....0....2....2....2....1....0....0....0

%e ..0....1....0....1....1....2....1....2....0....2....2....2....0....0....1....2

%e ..0....1....0....0....0....0....2....2....0....2....1....1....0....1....0....0

%e ..1....0....0....0....0....1....0....0....2....1....2....2....0....0....2....0

%e ..0....1....2....2....1....1....0....2....0....0....2....1....2....1....0....2

%e ..2....2....2....0....0....0....1....0....0....2....2....2....0....0....2....1

%e ..2....0....0....0....2....0....1....2....2....0....0....2....2....0....0....0

%e ..0....0....1....1....1....2....1....1....0....2....0....2....0....0....1....0

%e ..2....0....2....1....0....0....2....2....0....0....1....2....0....1....2....0

%e ..2....0....0....0....1....1....2....2....0....0....0....0....0....2....2....2

%e ..0....0....0....0....0....2....1....1....2....1....0....1....1....1....2....2

%K nonn

%O 1,1

%A _R. H. Hardin_, Oct 06 2014

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 August 17 10:20 EDT 2024. Contains 375209 sequences. (Running on oeis4.)