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!)
A264189 Number of (n+1)X(7+1) arrays of permutations of 0..n*8+7 with each element having index change +-(.,.) 0,0 1,-1 or 2,2. 1

%I

%S 128,28561,7056000,1150295056,236489590800,45243595984896,

%T 8858631122029794,1735499070021362724,340798670288720182080,

%U 66890689375865953200625,13143886817631908161583232

%N Number of (n+1)X(7+1) arrays of permutations of 0..n*8+7 with each element having index change +-(.,.) 0,0 1,-1 or 2,2.

%C Column 7 of A264190.

%H R. H. Hardin, <a href="/A264189/b264189.txt">Table of n, a(n) for n = 1..22</a>

%e Some solutions for n=2

%e ..0..8.20.10..4.23..6..7....0..8..2..3..4.12.13..7...18..1..2..3..4.23..6..7

%e ..1.16..3.18.12.13.14.15....1.16.10.11..5..6.14.22....8..9.17.11.19.13.14.15

%e ..9.17.11.19..2.21.22..5....9.17.18.19.20.21.15.23...16.10..0.12.20.21.22..5

%Y Cf. A264190.

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 06 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 May 20 15:47 EDT 2022. Contains 353874 sequences. (Running on oeis4.)