A200558 - OEIS

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A200558

Number of -n..n arrays x(0..7) of 8 elements with zero sum and nonzero second differences

362, 21626, 266812, 1689732, 7286542, 24378976, 68263780, 167521092, 371147726, 758120242, 1449515972, 2623194882, 4532144132, 7526204850, 12076969112, 18807807576, 28527996642, 42270457652, 61336410730, 87344689150

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

OFFSET

1,1

COMMENTS

Row 6 of A200553

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..58

EXAMPLE

Some solutions for n=3

.-3....0....0...-3....1....1....1....1....0....0...-3...-3....1....1....1....0

..3....1....0....3...-3....0...-3....1...-2....1....2....1....0...-2...-1...-2

..0....3....3...-3....1....1...-1....0...-1....1...-3....0...-3...-2....0....1