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!)
A202859 Number of n X n 0..3 arrays with row and column sums one greater than the previous row and column 0
4, 12, 228, 41852, 80524892, 1720483641156 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A202864

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Sequence in context: A173603 A175718 A076030 * A131491 A286881 A291098

Adjacent sequences:  A202856 A202857 A202858 * A202860 A202861 A202862

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 25 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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 17 18:29 EDT 2021. Contains 347489 sequences. (Running on oeis4.)