A233721 Number of (n+1)X(4+1) 0..7 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 26

68828, 820524, 10950676, 170070448, 2734167036, 46522687660, 796715658452, 13995270446204, 245408211398092, 4358775191230524, 77150745635099900, 1375309537380981836, 24439122021669087584, 436122272157881688916

Offset

1,1

Comments

Column 4 of A233724

Links

R. H. Hardin, Table of n, a(n) for n = 1..109

Example

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

Crossrefs

Sequence in context: A249315 A031863 A213702 * A121107 A046516 A199997

Adjacent sequences: A233718 A233719 A233720 * A233722 A233723 A233724

Keyword

nonn

Author

R. H. Hardin, Dec 15 2013

Status

approved