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!)
A229684 Number of defective 3-colorings of an n X 7 0..2 array connected diagonally and antidiagonally with exactly two mistakes, and colors introduced in row-major 0..2 order. 1
0, 101376, 7952256, 437924880, 21063718224, 937213830720, 39647663129952, 1617006498774912, 64143524707305984, 2489243835565159488, 94897266574306915296, 3564781098414437505600, 132254323024723203273120 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Column 7 of A229685.
LINKS
FORMULA
Empirical recurrence of order 46 (see link above).
EXAMPLE
Some solutions for n=3:
0 0 1 1 1 0 1 0 0 1 0 1 0 1 0 1 1 2 1 2 1
1 0 2 0 2 0 1 2 0 1 0 1 0 1 2 0 0 0 0 0 0
0 0 1 0 2 0 1 2 2 2 0 1 2 2 2 1 1 1 2 1 0
CROSSREFS
Sequence in context: A354566 A251959 A250631 * A187642 A023077 A077760
KEYWORD
nonn
AUTHOR
R. H. Hardin, Sep 27 2013
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 29 22:36 EDT 2024. Contains 372954 sequences. (Running on oeis4.)