A219141 Unchanging value maps: number of nX7 binary arrays indicating the locations of corresponding elements unequal to no horizontal, diagonal or antidiagonal neighbor in a random 0..2 nX7 array

37, 543, 15255, 341648, 7640541, 170792866, 3862325048, 87205791997, 1964627314453, 44248075120119, 997182574575448, 22477181379388546, 506606543634822152, 11417623925479199496, 257329160512779838675

Offset

1,1

Comments

Column 7 of A219142

Links

R. H. Hardin, Table of n, a(n) for n = 1..21

Example

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

Crossrefs

Sequence in context: A232033 A006303 A219440 * A220938 A221292 A231514

Adjacent sequences: A219138 A219139 A219140 * A219142 A219143 A219144

Keyword

nonn

Author

R. H. Hardin Nov 12 2012

Status

approved