A196964 Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,1,2,0,3 for x=0,1,2,3,4

6, 145, 3145, 58639, 1210968, 24281566, 482839574, 9688062164, 194158517334, 3887864391419, 77882274874621, 1560086250583302, 31249383701318779, 625956152664072444, 12538492197520048383, 251157344451183972038

Offset

1,1

Comments

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

Column 5 of A196967

Links

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

Example

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

Crossrefs

Sequence in context: A166953 A280847 A041271 * A121473 A166837 A166809

Adjacent sequences: A196961 A196962 A196963 * A196965 A196966 A196967

Keyword

nonn

Author

R. H. Hardin Oct 08 2011

Status

approved