The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
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!)
A236806 Number of (n+1)X(5+1) 0..2 arrays with the maximum plus the lower median minus the upper median minus the minimum of every 2X2 subblock equal 1
17481, 410305, 9558409, 270610375, 6612746409, 203606804707, 5094225962785, 167431587932179, 4238424064205001, 146743496294875195, 3736375181313140689, 134871797219330857075, 3444806969589767397849, 128484283442135059854667 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A236809
LINKS
FORMULA
Empirical: a(n) = 6*a(n-1) +2037*a(n-2) -12282*a(n-3) -1251404*a(n-4) +7631304*a(n-5) +222376028*a(n-6) -1410692088*a(n-7) +774758880*a(n-8) +9534803520*a(n-9) -17365107200*a(n-10) -5340748800*a(n-11) +29872128000*a(n-12) -16293888000*a(n-13)
EXAMPLE
Some solutions for n=1
..0..2..2..1..0..1....2..2..1..2..2..2....1..1..2..2..2..2....2..0..1..1..2..2
..0..1..2..2..2..0....1..2..0..0..1..2....1..0..0..1..2..1....0..1..1..0..2..1
CROSSREFS
Sequence in context: A043850 A043866 A043875 * A048256 A303996 A251641
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 31 2014
STATUS
approved

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 24 01:38 EDT 2024. Contains 372768 sequences. (Running on oeis4.)