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!)
A237553 Number of (n+1)X(4+1) 0..2 arrays with the maximum minus the upper median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one 1
4752, 44668, 343356, 3207808, 31949604, 343405228, 3451915208, 35706407872, 366179841668, 3961978247404, 40254023599420, 416899486720746, 4287479200890220, 46169383245256136, 470989649165202440 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A237557

LINKS

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

R. H. Hardin, Empirical recurrence of order 90

FORMULA

Empirical recurrence of order 90 (see link above)

EXAMPLE

Some solutions for n=2

..1..0..0..2..0....1..0..0..2..1....0..2..2..1..0....0..2..1..1..2

..2..1..1..0..2....0..1..0..0..1....1..1..0..0..1....1..1..2..0..2

..1..2..1..0..1....2..1..0..1..1....0..0..2..2..1....1..1..0..0..1

CROSSREFS

Sequence in context: A252204 A083637 A083638 * A250467 A183267 A258231

Adjacent sequences:  A237550 A237551 A237552 * A237554 A237555 A237556

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 09 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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 21 06:44 EDT 2021. Contains 348141 sequences. (Running on oeis4.)