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!)
A229471 Number of defective 4-colorings of an n X n 0..3 array connected horizontally, antidiagonally and vertically with exactly one mistake, and colors introduced in row-major 0..3 order. 0
0, 6, 420, 36116, 5068384, 1317269920, 670127758336, 686446917153024, 1439114626511742976, 6238265946576239106048 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A229479.

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

Some solutions for n=4:

  0 1 0 2     0 1 2 0     0 1 2 2     0 1 2 0     0 1 0 2

  2 3 1 3     2 3 1 2     3 0 3 1     2 3 1 2     2 0 1 0

  1 3 0 1     1 0 3 0     1 2 0 2     1 2 0 1     3 2 3 1

  0 2 3 0     2 1 0 2     0 1 3 0     0 1 0 2     0 1 0 3

CROSSREFS

Cf. A229479.

Sequence in context: A159015 A106206 A174773 * A258192 A273820 A162088

Adjacent sequences:  A229468 A229469 A229470 * A229472 A229473 A229474

KEYWORD

nonn,changed

AUTHOR

R. H. Hardin, Sep 24 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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 7 02:20 EDT 2021. Contains 343636 sequences. (Running on oeis4.)