login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A233110 Number of nX5 0..5 arrays with no element x(i,j) adjacent to value 5-x(i,j) horizontally or vertically, top left element zero, and 1 appearing before 2 3 and 4, and 2 appearing before 3 in row major order 1
99, 123352, 189286871, 294285758398, 457873555330159, 712427482567592092, 1108502928092713640626, 1724777533707727108574193, 2683671364004795423834363994, 4175664311828036646078204783047 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A233113

LINKS

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

FORMULA

Empirical: a(n) = 1903*a(n-1) -587832*a(n-2) +77760886*a(n-3) -5287016185*a(n-4) +188909127665*a(n-5) -3121291574501*a(n-6) +5961157912045*a(n-7) +488488284983722*a(n-8) -6216213294870140*a(n-9) +30096051456844829*a(n-10) -50425593642643659*a(n-11) -57028414169574032*a(n-12) +289749791197635300*a(n-13) -320983517286000000*a(n-14) +114316383888000000*a(n-15)

EXAMPLE

Some solutions for n=2

..0..0..1..5..2....0..1..5..4..0....0..1..1..1..2....0..1..0..1..5

..0..3..5..5..2....0..0..2..0..1....1..5..5..2..5....2..1..0..0..3

CROSSREFS

Sequence in context: A221301 A233144 A233236 * A233214 A228537 A093211

Adjacent sequences:  A233107 A233108 A233109 * A233111 A233112 A233113

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 04 2013

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 September 19 15:08 EDT 2019. Contains 327198 sequences. (Running on oeis4.)