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!)
A265001 Number of nX4 arrays of permutations of 4 copies of 0..n-1 with rows and columns nondecreasing. 0

%I #3 Nov 29 2015 16:06:24

%S 1,3,14,112,1095,13009,175865,2647438,43347498,760869739,14150265025,

%T 276374334318,5629364791202

%N Number of nX4 arrays of permutations of 4 copies of 0..n-1 with rows and columns nondecreasing.

%C Column 4 of A265005.

%e Some solutions for n=4

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

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

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

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

%Y Cf. A265005.

%K nonn

%O 1,2

%A _R. H. Hardin_, Nov 29 2015

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 23 20:33 EDT 2024. Contains 371916 sequences. (Running on oeis4.)