A233788 Number of (n+1)X(4+1) 0..3 arrays with every 2X2 subblock having the sum of the squares of all six edge and diagonal differences equal to 11

2856, 19396, 125976, 966892, 6892448, 58623880, 443965172, 4064000052, 31925115348, 306087278904, 2454080129016, 24176541741092, 195967141075428, 1960732403749404, 15985700459500860, 161362564368374036

Offset

1,1

Comments

Column 4 of A233792

Links

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

Example

Some solutions for n=3
..0..2..2..0..2....2..1..2..0..2....2..0..0..0..0....1..1..1..3..3
..0..1..0..1..2....0..2..0..1..2....0..1..2..1..2....3..2..3..2..1
..2..2..2..2..0....2..1..2..0..2....0..2..0..2..0....3..1..1..3..1
..1..0..1..0..1....3..3..1..2..1....2..1..0..1..0....2..3..2..3..2

Crossrefs

Sequence in context: A255026 A345588 A345846 * A250637 A067703 A253714

Adjacent sequences: A233785 A233786 A233787 * A233789 A233790 A233791

Keyword

nonn

Author

R. H. Hardin, Dec 15 2013

Status

approved