A233987 Number of (n+1)X(6+1) 0..4 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 10, and no two adjacent values equal.

70176, 2520604, 88388464, 3423714364, 128552152496, 5022726159372, 191944315497416, 7487035849093952, 287988408968956708, 11207807841979934484, 432438537179737859672, 16802135571140886642280

Offset

1,1

Comments

Column 6 of A233989

Links

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

Example

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

Crossrefs

Sequence in context: A043858 A043876 A224464 * A243135 A253738 A252104

Adjacent sequences: A233984 A233985 A233986 * A233988 A233989 A233990

Keyword

nonn

Author

R. H. Hardin, Dec 18 2013

Status

approved