A231466 Number of (3+1)X(n+1) 0..3 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with values 0..3 introduced in row major order

7, 15, 100, 311, 1709, 7973, 37494, 207123, 1039577, 5801570, 32328791, 180333889, 1052960813, 6036980691, 35461369867, 208542506549, 1227636956922, 7289753229789, 43168317190255, 256712609867030, 1527296174594552

Offset

1,1

Comments

Row 3 of A231463

Links

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

Example

Some solutions for n=7
..0..0..0..1..1..1..2..2....0..0..1..1..1..0..0..0....0..1..1..1..2..2..2..3
..0..0..0..1..1..2..2..2....0..1..0..1..0..0..0..0....0..0..1..1..2..2..3..3
..0..0..1..1..2..2..2..2....1..0..1..0..0..2..2..2....0..0..1..1..2..2..3..3
..0..0..1..1..1..2..2..2....0..1..0..0..2..2..2..2....0..1..1..2..2..2..3..3

Crossrefs

Sequence in context: A041413 A144536 A231399 * A032004 A032018 A243470

Adjacent sequences: A231463 A231464 A231465 * A231467 A231468 A231469

Keyword

nonn

Author

R. H. Hardin, Nov 09 2013

Status

approved