A202010 - OEIS

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A202010

Number of -n..n circular arrays x(0..7) of 8 elements with zero sums of x(i) and x(i)*x((i+1) mod 8)

329, 4281, 22865, 80065, 221433, 511257, 1039409, 1942577, 3390393, 5593849, 8817137, 13364177, 19646313, 28112089, 39223825, 53614481, 71956841, 95063497, 123687521, 158858737, 201582329, 252854953, 314267937, 386939601, 472760313

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Row 6 of A202006

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..30

EXAMPLE

Some solutions for n=1

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

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

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