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!)
A248839 Number of length n arrays x(i), i=1..n with x(i) in 0..i and no value appearing more than 5 times 1

%I #4 Oct 15 2014 14:45:34

%S 2,6,24,120,720,5038,40260,361636,3606044,39517182,472002456,

%T 6102356222,84896359836,1264499036118,20075760897736,338430468325576,

%U 6037037185793372,113608224705704476,2249252806749536964

%N Number of length n arrays x(i), i=1..n with x(i) in 0..i and no value appearing more than 5 times

%C Column 5 of A248842

%H R. H. Hardin, <a href="/A248839/b248839.txt">Table of n, a(n) for n = 1..136</a>

%e Some solutions for n=6

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

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

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

%e ..2....1....2....1....0....4....0....3....0....2....1....1....3....2....1....4

%e ..1....4....4....5....1....2....2....2....5....0....4....4....5....2....0....3

%e ..0....0....2....2....5....3....4....0....5....4....1....4....0....0....5....6

%K nonn

%O 1,1

%A _R. H. Hardin_, Oct 15 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 March 29 02:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)