A233680 Number of (n+1) X (6+1) 0..3 arrays with every 2 X 2 subblock having the sum of the squares of the edge differences equal to 6.

32456, 621904, 11482368, 289389648, 6336415296, 169016684160, 3879764059776, 103768584198400, 2432577744933760, 64581965636210432, 1534644947160682880, 40401905663752484096, 970027110549877187968, 25344617921108520080128

Offset

1,1

Comments

Column 6 of A233682.

Links

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

Example

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

Crossrefs

Cf. A233682.

Sequence in context: A156423 A236656 A031639 * A243857 A028240 A251000

Adjacent sequences: A233677 A233678 A233679 * A233681 A233682 A233683

Keyword

nonn

Author

R. H. Hardin, Dec 14 2013

Status

approved