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!)
A188955 Number of nX4 array permutations with each element moved no more than a city block distance of two 1

%I

%S 14,3969,1722256,504690017,151700751624,47085945014364,

%T 14529766291673016,4473345039125385924,1378237965469881319638,

%U 424709806495811992908136,130865875276447905156349870,40323080903656724639859869876

%N Number of nX4 array permutations with each element moved no more than a city block distance of two

%C Column 4 of A188958

%H R. H. Hardin, <a href="/A188955/b188955.txt">Table of n, a(n) for n = 1..52</a>

%e Some solutions for 3X4

%e ..0..2..5..7....0..2..1..3....0..4..1..2....0..2..3..1....0..2..3..1

%e ..6..1..9.11....8..4.10..5....6..8..7..3....8..6.11..5....4.10..9..5

%e .10..4..8..3....9..6.11..7...10.11..5..9...10..4..7..9....8.11..7..6

%K nonn

%O 1,1

%A _R. H. Hardin_ Apr 14 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 May 16 02:01 EDT 2022. Contains 353687 sequences. (Running on oeis4.)