A205438 Number of (n+1)X7 0..3 arrays with every 2X2 subblock having the same number of equal edges, and new values 0..3 introduced in row major order

108173, 31378965, 14089784418, 6789317584699, 3300774182686057, 1606623426666766016, 782131966561958879310, 380763362978291361279362, 185366619385244895663595976, 90241868748566904487116158823

Offset

1,1

Comments

Column 6 of A205440

Links

R. H. Hardin, Table of n, a(n) for n = 1..17

Example

Some solutions for n=4
..0..1..1..2..1..2..3....0..1..1..2..2..0..1....0..0..0..0..0..0..0
..0..1..2..2..1..2..2....3..3..0..0..3..3..3....0..0..0..0..0..0..0
..0..1..1..1..1..1..2....1..2..2..1..1..2..0....0..0..0..0..0..0..0
..0..0..0..1..0..1..2....1..3..0..0..3..3..3....0..0..0..0..0..0..0
..1..0..1..1..0..1..1....0..3..1..2..2..1..2....0..0..0..0..0..0..0

Crossrefs

Sequence in context: A178284 A157825 A205607 * A102333 A236650 A237789

Adjacent sequences: A205435 A205436 A205437 * A205439 A205440 A205441

Keyword

nonn

Author

R. H. Hardin Jan 27 2012

Status

approved