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!)
A264259 Number of (3+1)X(n+1) arrays of permutations of 0..n*4+3 with each element having directed index change 0,1 0,-1 0,2 1,0 or -1,0. 1
25, 180, 1920, 23805, 254393, 2896729, 32417000, 362988208, 4079574153, 45742016837, 513349384857, 5760401480068, 64634042719216, 725279709931309, 8138297524707793, 91320059100929713, 1024705806548622112 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 3 of A264257.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=4

..5..6..7..4..9....5..6..1..4..9....1..6..3..4..9....5..0..1..4..3

..0..1..2..3..8....0..7..2..3.14....0..7..2.13..8...10..7..2.13..8

.15.12.11.18.19...11.12.10..8.19....5.16.11.14.19...15..6.17.14..9

.10.17.16.13.14...16.17.15.13.18...10.15.12.17.18...16.11.12.19.18

CROSSREFS

Cf. A264257.

Sequence in context: A042212 A258319 A302562 * A209858 A209851 A330126

Adjacent sequences:  A264256 A264257 A264258 * A264260 A264261 A264262

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 09 2015

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 June 20 23:00 EDT 2021. Contains 345301 sequences. (Running on oeis4.)