A233855 Number of (n+1)X(3+1) 0..7 arrays with every 2X2 subblock having the sum of the squares of all six edge and diagonal differences equal to 59

4640, 22472, 106304, 716800, 4319616, 34000600, 226756256, 1873475872, 13046763360, 108927798728, 775259184232, 6465552671224, 46607527471896, 387135535384352, 2814016270828984, 23274895181188384, 170164969520406888

Offset

1,1

Comments

Column 3 of A233859

Links

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

Example

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

Crossrefs

Sequence in context: A031566 A236815 A343637 * A068268 A227482 A028551

Adjacent sequences: A233852 A233853 A233854 * A233856 A233857 A233858

Keyword

nonn

Author

R. H. Hardin, Dec 16 2013

Status

approved