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!)
A250315 Number of length n+2 0..3 arrays with the sum of second differences squared multiplied by some arrangement of +-1 equal to zero 0

%I

%S 8,60,104,652,2432,12820,61092,300616,1423966,6523576,28749998,

%T 122577404,509838050,2086581780,8455716678,34069235524

%N Number of length n+2 0..3 arrays with the sum of second differences squared multiplied by some arrangement of +-1 equal to zero

%C Column 3 of A250320

%e Some solutions for n=6

%e ..0....0....0....0....1....3....0....0....2....2....2....2....1....0....3....1

%e ..1....1....2....2....0....2....3....1....3....1....3....0....2....0....0....3

%e ..1....1....3....0....3....0....3....0....2....3....3....0....0....2....0....3

%e ..0....3....1....2....2....1....3....0....2....3....1....1....0....2....0....0

%e ..2....3....0....1....2....3....3....1....1....3....1....0....1....2....2....2

%e ..0....2....3....3....3....3....1....3....3....1....1....0....3....0....2....2

%e ..1....1....3....1....3....0....0....2....3....2....1....1....1....2....2....0

%e ..2....0....3....3....2....1....1....3....0....3....2....1....2....2....1....0

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 18 2014

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 15 21:38 EDT 2021. Contains 348034 sequences. (Running on oeis4.)