A233996 Number of (n+1)X(7+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 18

1995424, 4923910, 11510748, 39038268, 117312896, 533896296, 1997753492, 12585162304, 57382924232

Offset

1,1

Comments

Column 7 of A233997

Links

Table of n, a(n) for n=1..9.

Example

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

Crossrefs

Sequence in context: A345626 A346344 A172791 * A359534 A081398 A022226

Adjacent sequences: A233993 A233994 A233995 * A233997 A233998 A233999

Keyword

nonn

Author

R. H. Hardin, Dec 18 2013

Status

approved