A233723 Number of (n+1)X(6+1) 0..7 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 26

2624872, 54865696, 1417835712, 46522687660, 1650535163756, 64234332473960, 2551739071259076, 105766745720453760, 4388114335496330756, 186207934147222139492

Offset

1,1

Comments

Column 6 of A233724

Links

Table of n, a(n) for n=1..10.

Example

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

Crossrefs

Sequence in context: A004674 A123155 A251036 * A162026 A229799 A196496

Adjacent sequences: A233720 A233721 A233722 * A233724 A233725 A233726

Keyword

nonn

Author

R. H. Hardin, Dec 15 2013

Status

approved