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
14, 3969, 1722256, 504690017, 151700751624, 47085945014364, 14529766291673016, 4473345039125385924, 1378237965469881319638, 424709806495811992908136, 130865875276447905156349870, 40323080903656724639859869876 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A188958

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..52

EXAMPLE

Some solutions for 3X4

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

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

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

CROSSREFS

Sequence in context: A268179 A268002 A337961 * A157824 A180588 A214441

Adjacent sequences:  A188952 A188953 A188954 * A188956 A188957 A188958

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 14 2011

STATUS

approved

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 January 16 14:59 EST 2022. Contains 350376 sequences. (Running on oeis4.)