A233890 Number of (n+1)X(6+1) 0..6 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 30, and no two adjacent values equal

48300, 1183328, 27131156, 759799284, 19042134996, 537828679688, 13755592501748, 387390404847976, 10003460641597548, 280806316673884556, 7299032599538032096, 204351152523102679952, 5339436117855061179288

Offset

1,1

Comments

Column 6 of A233892

Links

R. H. Hardin, Table of n, a(n) for n = 1..147

Example

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

Crossrefs

Sequence in context: A253494 A253501 A253455 * A031867 A151839 A151876

Adjacent sequences: A233887 A233888 A233889 * A233891 A233892 A233893

Keyword

nonn

Author

R. H. Hardin, Dec 17 2013

Status

approved