A196715 Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,2,1,3 for x=0,1,2,3,4

8, 83, 543, 6078, 56137, 573131, 5443550, 50508808, 481054949, 4618260844, 44096133059, 419989162410, 4001092015315, 38160566402453, 364041145786794, 3471329248464444, 33096140079277931, 315588530171400369

Offset

1,1

Comments

Every 0 is next to 0 4's, every 1 is next to 1 0's, every 2 is next to 2 2's, every 3 is next to 3 1's, every 4 is next to 4 3's

Column 5 of A196718

Links

R. H. Hardin, Table of n, a(n) for n = 1..200

Example

Some solutions for n=4
..1..1..2..2..1....1..2..2..0..1....0..0..0..0..1....0..0..0..2..2
..0..0..2..2..0....0..2..2..1..3....2..2..0..0..1....2..2..0..2..2
..0..0..0..0..0....0..1..1..1..1....2..2..0..0..1....2..2..1..1..0
..0..0..0..0..0....1..1..0..0..0....0..0..0..0..1....1..0..1..3..1

Crossrefs

Sequence in context: A069635 A069620 A196482 * A179980 A236671 A232226

Adjacent sequences: A196712 A196713 A196714 * A196716 A196717 A196718

Keyword

nonn

Author

R. H. Hardin Oct 05 2011

Status

approved