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!)
A269108 Number of n X 7 0..3 arrays with some element plus some horizontally or vertically adjacent neighbor totalling three no more than once. 1
8748, 8787660, 6482020140, 4227147007836, 2579398703502996, 1509593256271433868, 858502190008810133292, 478110059855042497842996, 262048541877700400412558012, 141832398849461215193264315676 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A269109.
LINKS
FORMULA
Empirical recurrence of order 64 (see link above).
EXAMPLE
Some solutions for n=1
..2..1..0..2..2..2..0. .0..1..1..2..3..1..3. .3..3..1..3..0..0..2
CROSSREFS
Cf. A269109.
Sequence in context: A269193 A269142 A269200 * A269288 A234148 A205254
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 19 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 June 19 02:16 EDT 2024. Contains 373492 sequences. (Running on oeis4.)