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!)
A267790 Number of 4Xn 0..1 arrays with every repeated value in every row greater than or equal to, and in every column greater than, the previous repeated value. 1
9, 81, 729, 5081, 34173, 211555, 1262760, 7263481, 40755550, 223936008, 1210708628, 6459502002, 34095465344, 178380596163, 926424208370, 4781950926795, 24555731443566, 125543243787981, 639444488484051 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 4 of A267788.

LINKS

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

R. H. Hardin, Empirical recurrence of order 93

FORMULA

Empirical recurrence of order 93 (see link above)

EXAMPLE

Some solutions for n=4

..1..1..1..0....0..1..0..1....0..0..0..1....0..1..1..0....0..0..1..1

..0..0..0..0....1..0..1..0....0..1..0..1....0..0..0..1....1..0..1..0

..1..1..1..1....1..0..0..1....1..1..1..0....1..0..0..1....0..1..0..0

..0..1..0..0....0..1..0..1....0..0..0..1....1..1..1..0....0..1..1..1

CROSSREFS

Cf. A267788.

Sequence in context: A171283 A174108 A254435 * A268014 A228972 A125947

Adjacent sequences:  A267787 A267788 A267789 * A267791 A267792 A267793

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 20 2016

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 23 18:08 EDT 2022. Contains 353993 sequences. (Running on oeis4.)