login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo

Please make a donation to keep the OEIS running. We are now in our 56th year. In the past year we added 10000 new sequences and reached almost 9000 citations (which often say "discovered thanks to the OEIS").
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A236894 Number of (n+1)X(n+1) 0..2 arrays with the maximum plus the upper median of every 2X2 subblock equal 1
81, 3205, 588459, 715994489, 3548382361732, 83535813974993711, 8373750980551070108806, 3763719053101058628172546403, 7388319149846129155540345883224889 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A236902

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..11

EXAMPLE

Some solutions for n=2

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

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

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

CROSSREFS

Sequence in context: A295651 A143652 A270343 * A231768 A017797 A205207

Adjacent sequences:  A236891 A236892 A236893 * A236895 A236896 A236897

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 01 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 November 25 11:32 EST 2020. Contains 338623 sequences. (Running on oeis4.)