A211752 Number of -3..3 arrays x(i) of n+1 elements i=1..n+1 with set{t,u,v in 0,1}((x[i+t]+x[j+u]+x[k+v])*(-1)^(t+u+v)) having two, four, five, six or eight distinct values for every i,j,k<=n

48, 306, 1484, 6086, 22712, 80874, 280918, 968918, 3331390, 11529150, 40039718, 140472370, 495086118, 1762513772, 6298664834, 22708461010, 82096862576, 299009175572, 1091067476376, 4005899379338, 14725718137608, 54410699363212

Offset

1,1

Links

R. H. Hardin, Table of n, a(n) for n = 1..38

Example

Some solutions for n=5
.-2....3...-3....3...-3....1....2....2....2....0....2....3....3....3....2....1
.-2....0...-1....0....3....0....1...-3....3....1....1...-3...-1....2...-3...-2
.-1....3....0....1....3...-3....3....0....1....2....0...-3...-1...-2...-2...-3
..0...-2...-1....1....2....0....2...-2....3....2....2...-3....3....2...-2....1
.-2....1...-1....0....3....1....1...-3....1....3....1...-2....3....2...-2...-3
.-3...-2...-3....2...-3...-2....2...-2....3....0....1....1....1....1....1...-3

Crossrefs

Sequence in context: A222773 A211732 A211743 * A211763 A134607 A192215

Adjacent sequences: A211749 A211750 A211751 * A211753 A211754 A211755

Keyword

nonn

Author

R. H. Hardin Apr 20 2012

Status

approved