login
The OEIS is supported by the many generous donors to the OEIS Foundation.
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A198659
Number of nX5 0..7 arrays with values 0..7 introduced in row major order and each element equal to at least one horizontal or vertical neighbor
0
3, 488, 98467, 40065880, 22693251873, 17510670291958
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 5 of A198661
LINKS
Table of n, a(n) for n=1..6.
EXAMPLE
Some solutions with all values 0 to 7 for n=4
..0..1..1..1..2....0..1..1..2..3....0..1..1..2..2....0..1..2..3..4
..0..2..3..4..2....0..4..1..2..3....0..3..3..2..0....0..1..2..3..4
..2..2..3..4..5....4..4..5..6..7....4..5..6..6..0....5..6..7..7..4
..6..6..7..7..5....2..2..5..6..7....4..5..5..7..7....5..6..7..3..3
CROSSREFS
Sequence in context: A198705 A198624 A198652 * A142801 A057632 A245245
Adjacent sequences: A198656 A198657 A198658 * A198660 A198661 A198662
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 28 2011
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 16 01:18 EST 2024. Contains 377778 sequences.
License Agreements, Terms of Use, Privacy Policy