A220973 Equals one maps: number of nX4 binary arrays indicating the locations of corresponding elements equal to exactly one of their king-move neighbors in a random 0..1 nX4 array

8, 23, 368, 1972, 12033, 79554, 503607, 3213597, 20509600, 131200351, 838727086, 5361102811, 34276632448, 219139964718, 1400992769305, 8956840667851, 57262934303862, 366093267032756, 2340506776827743, 14963323072215607

Offset

1,1

Comments

Column 4 of A220977

Links

R. H. Hardin, Table of n, a(n) for n = 1..23

Example

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

Crossrefs

Sequence in context: A303720 A304414 A305949 * A233470 A334720 A172390

Adjacent sequences: A220970 A220971 A220972 * A220974 A220975 A220976

Keyword

nonn

Author

R. H. Hardin Dec 27 2012

Status

approved