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!)
A264134 Number of (3+1)X(n+1) arrays of permutations of 0..n*4+3 with each element having index change +-(.,.) 0,0 0,2 or 1,2. 1

%I

%S 1,34,1156,13600,160000,2920000,53290000,862334400,13954224384,

%T 237306157920,4035639032100,67770918639450,1138084297605025,

%U 19211562098419745,324302970384650401,5467769427984651928

%N Number of (3+1)X(n+1) arrays of permutations of 0..n*4+3 with each element having index change +-(.,.) 0,0 0,2 or 1,2.

%C Row 3 of A264131.

%H R. H. Hardin, <a href="/A264134/b264134.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

%e ..7..1..9..3..4....2..3..0..1..4....7..8..9..3..4....0..1..4..3..2

%e ..5..6..0..8..2....5.13.14..8..9....5..6..0..1..2....7.13..5..8..9

%e .10.11.19.13.14...10.11.12..6..7...10.11.12.13.14...10.11.14..6.12

%e .15.16.17.18.12...17.18.15.16.19...15.16.17.18.19...15.16.19.18.17

%Y Cf. A264131.

%K nonn

%O 1,2

%A _R. H. Hardin_, Nov 03 2015

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 July 6 23:01 EDT 2020. Contains 335484 sequences. (Running on oeis4.)