A233661 Number of (n+1)X(3+1) 0..6 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 26

6656, 56212, 501200, 5005852, 50997688, 538751292, 5717710176, 61553770120, 662422496208, 7175663136164, 77612411324720, 842364340920784, 9128887620954704, 99132686202841220, 1075213139367059160

Offset

1,1

Comments

Column 3 of A233665

Links

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

Example

Some solutions for n=2
..3..2..2..2....2..4..2..4....0..0..0..4....0..2..0..3....1..3..1..1
..3..6..3..6....5..2..5..2....1..4..3..3....2..5..2..5....4..6..4..0
..1..3..5..3....5..6..6..6....0..0..0..4....6..6..6..5....6..3..1..0

Crossrefs

Sequence in context: A043634 A060792 A119519 * A131645 A186086 A236733

Adjacent sequences: A233658 A233659 A233660 * A233662 A233663 A233664

Keyword

nonn

Author

R. H. Hardin, Dec 14 2013

Status

approved