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!)
A184237 Number of strings of numbers x(i=1..n) in 0..6 with sum i^2*x(i)^2 equal to n^2*36 1

%I

%S 1,1,2,2,11,43,176,962,5920,32442,200063,1001781,5741231,27193559,

%T 138909230,637035484,2950387477,13201021106,57236617635,249376811696,

%U 1038248236269,4406834227368,17966062720649,74439378783079

%N Number of strings of numbers x(i=1..n) in 0..6 with sum i^2*x(i)^2 equal to n^2*36

%C Column 6 of A184240

%H R. H. Hardin, <a href="/A184237/b184237.txt">Table of n, a(n) for n = 1..27</a>

%e All solutions for n=5

%e ..0....4....4....6....4....6....0....0....0....6....0

%e ..5....2....6....4....4....6....0....0....4....4....5

%e ..0....6....6....0....4....4....0....6....2....4....4

%e ..5....3....1....5....6....6....0....6....5....4....4

%e ..4....4....4....4....2....0....6....0....4....4....4

%K nonn

%O 1,3

%A _R. H. Hardin_ Jan 10 2011

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 18 21:56 EDT 2021. Contains 348070 sequences. (Running on oeis4.)