A231956 Number of (n+1)X(7+1) 0..1 arrays with every element equal to some horizontal, vertical, diagonal or antidiagonal neighbor, with top left element zero

12512, 3295580, 732691918, 171279257338, 40322931224352, 9478886429386626, 2227569337736429246, 523508634894235102896, 123033126916188723929280, 28914771603349522608580808, 6795434605065557633557620296

Offset

1,1

Comments

Column 7 of A231957

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Sequence in context: A335989 A220026 A349044 * A252164 A045217 A298313

Adjacent sequences: A231953 A231954 A231955 * A231957 A231958 A231959

Keyword

nonn

Author

R. H. Hardin, Nov 15 2013

Status

approved