[go: up one dir, main page]
login
The OEIS is supported by the many generous donors to the OEIS Foundation.
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A218515
Number of n X n arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random 0..3 n X n array
0
4, 36, 4634, 1608968, 3856183182, 40522780697742, 2345237392530015812, 681081741849413830473468, 1012037226170162671485394009190
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A218522
LINKS
Table of n, a(n) for n=1..9.
EXAMPLE
Some solutions for n=3
..1..1..2....3..1..1....0..0..0....3..1..2....1..1..3....2..2..3....2..2..2
..2..0..0....3..0..0....3..0..3....1..0..0....2..1..1....2..1..2....3..1..3
..2..0..2....3..0..1....2..1..1....1..0..0....1..1..1....1..1..2....1..1..2
CROSSREFS
Sequence in context: A179870 A001152 A349848 * A296136 A061024 A297105
Adjacent sequences: A218512 A218513 A218514 * A218516 A218517 A218518
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 31 2012
STATUS
approved

Lookup Welcome Wiki Register Music Plot 2 Demos Index WebCam Contribute Format Style Sheet Transforms Superseeker Recents
The OEIS Community
Maintained by The OEIS Foundation Inc.
Last modified November 23 22:07 EST 2024. Contains 378050 sequences.
License Agreements, Terms of Use, Privacy Policy