A233935 Number of (n+1)X(2+1) 0..7 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 16

1996, 12864, 85080, 661392, 5143164, 46016668, 395061480, 3815093864, 34317822704, 342312388928, 3138638309824, 31688893834996, 292797131523640, 2968457026273244, 27519218048473688, 279316588787043048

Offset

1,1

Comments

Column 2 of A233939

Links

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

Example

Some solutions for n=3
..6..3..0....6..1..6....3..1..3....2..3..0....2..7..7....7..6..4....3..4..7
..1..2..5....5..4..5....4..6..4....7..4..5....3..2..6....2..5..1....7..2..3
..5..0..3....7..2..7....1..3..1....2..5..0....7..2..6....7..6..6....7..6..1
..4..5..2....5..4..3....6..2..6....7..4..5....4..3..1....7..2..2....5..2..1

Crossrefs

Sequence in context: A233712 A223366 A034588 * A250380 A079012 A063472

Adjacent sequences: A233932 A233933 A233934 * A233936 A233937 A233938

Keyword

nonn

Author

R. H. Hardin, Dec 18 2013

Status

approved