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A211594 Number of -2..2 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, three, four, five, six or eight distinct values for every i,j,k<=n 1
24, 116, 448, 1472, 4444, 12774, 35650, 97884, 266054, 720836, 1948936, 5282998, 14342514, 39132978, 107104716, 294823440, 814517876, 2262919142, 6309912984, 17683751676, 49727073362, 140446174060, 397854724286, 1131186110662 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..51

EXAMPLE

Some solutions for n=5

..0...-1...-1....0....0...-1...-2...-1....1...-2....1....2....1....2....0...-1

..1....0...-2....1...-1...-2....0....2....0...-1....0....0...-1....2...-1...-2

.-2....2...-1....0....1...-1...-2....0...-1....1....1...-1...-1....0...-1....0

..1....0....0...-1....0....0...-2...-2...-1....0...-1....0...-2...-1...-1...-1

.-2...-2....1....1....1....2...-2....0...-1...-1....1....2...-2....0...-1....0

..1....0...-1....2....2....1...-2...-2...-2...-2....0....2....0...-1...-2....2

CROSSREFS

Sequence in context: A124952 A126411 A211580 * A211465 A293893 A137799

Adjacent sequences:  A211591 A211592 A211593 * A211595 A211596 A211597

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 16 2012

STATUS

approved

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Last modified January 23 16:13 EST 2022. Contains 350514 sequences. (Running on oeis4.)