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!)
A237319 Number of (n+1)X(3+1) 0..2 arrays with the maximum plus the upper median plus the minimum minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one 1
1508, 12756, 107572, 949596, 8219232, 69761476, 591728030, 5221400304, 45243325970, 385224702840, 3278469369768, 28912413134488, 250838050990430, 2142369322671848, 18290968147649740, 161215992846170104 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 3 of A237324
LINKS
FORMULA
Empirical: a(n) = 11007*a(n-4) -30511165*a(n-8) +2416368893*a(n-12) -38181989668*a(n-16) +148755328110*a(n-20) +281773663032*a(n-24) +100862271352*a(n-28) +2907602208*a(n-32) for n>35
EXAMPLE
Some solutions for n=3
..1..0..2..0....1..0..1..0....2..2..1..1....0..1..1..0....1..0..0..1
..1..2..1..1....1..2..2..1....0..2..0..2....0..0..0..2....2..1..2..1
..2..0..1..2....0..2..2..0....0..1..1..2....1..1..2..2....0..0..1..1
..0..0..2..1....1..1..2..0....0..1..0..1....1..0..1..2....0..2..0..0
CROSSREFS
Sequence in context: A059464 A096021 A190032 * A281569 A252553 A237725
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 06 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 26 18:00 EDT 2024. Contains 372840 sequences. (Running on oeis4.)