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!)
A186908 Number of (n+2)X4 0..6 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order 1
59969593, 2974946682, 99241308567, 2536761070723, 52666517720011, 921058887545363, 13921822487031205, 185414592506642580, 2208956268019713255, 23828517723857362267, 235072125997423449023 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 2 of A186915
LINKS
FORMULA
Polynomial of degree 89 in n, see link.
EXAMPLE
Some solutions for 6X4
..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0
..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0
..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0
..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0
..0..1..1..4....0..1..5..6....0..0..2..5....0..1..3..6....0..0..3..4
..2..1..5..0....4..6..2..3....3..5..4..2....4..1..3..6....1..3..4..6
CROSSREFS
Sequence in context: A104333 A106807 A213354 * A244918 A033624 A016870
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 28 2011
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 March 29 07:27 EDT 2024. Contains 371265 sequences. (Running on oeis4.)