A197249 - OEIS

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A197249

Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,0,1,1,1 for x=0,1,2,3,4

2, 192, 1035, 16773, 213912, 3264225, 48703999, 692974749, 9613268927, 144634486646, 2038308764828, 29317910548935, 416838295672468, 6110472912181664, 87970427980764925, 1247341042216025997

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

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

Column 7 of A197250

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..155

EXAMPLE

Some solutions containing all values 0 to 4 for n=4

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

..0..1..3..1..0..1..1....2..1..4..1..2..0..1....1..0..1..1..0..1..1

..1..4..1..4..1..1..3....1..0..1..1..3..1..2....1..1..3..2..1..4..1

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

CROSSREFS

Sequence in context: A103404 A232822 A230228 * A151709 A265750 A174827

Adjacent sequences: A197246 A197247 A197248 * A197250 A197251 A197252

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 12 2011

STATUS

approved