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!)
A189649 Number of n X 8 array permutations with each element moving zero or one space horizontally, diagonally or antidiagonally. 1

%I #7 Jan 06 2024 21:42:15

%S 34,127385,155610272,248034953713,376678790309002,579697460209171993,

%T 890636373071604964608,1369385680210307625221600,

%U 2105439181301591456075023034,3237297479202888870044365473801

%N Number of n X 8 array permutations with each element moving zero or one space horizontally, diagonally or antidiagonally.

%C Column 8 of A189650.

%H R. H. Hardin, <a href="/A189649/b189649.txt">Table of n, a(n) for n = 1..23</a>

%e Some solutions for 3 X 8

%e ..0..2..3..4.11..5..6..7....0..2..3.10..5..4..6..7....0..2..3..4..5.14.13..7

%e ..1..8.17.12.13.14.21.22....1..8.11.12.19.13.15.22....1..8.10.18.11..6.23.15

%e ..9.16.18.10.19.20.15.23....9.16.17.18.20.21.23.14....9.16.17.20.19.12.21.22

%Y Cf. A189650.

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 24 2011

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 11:45 EDT 2024. Contains 371278 sequences. (Running on oeis4.)