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A200043 Number of -n..n arrays x(0..6) of 7 elements with sum zero and with zeroth through 6th differences all nonzero 0
0, 214, 5268, 41228, 192280, 674234, 1882238, 4559584, 9869410, 19627458, 36265862, 63537830, 105895974, 169797756, 263132194, 395819648, 579860740, 831059432, 1166406254, 1608524888 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 7 of A200038

LINKS

Table of n, a(n) for n=1..20.

EXAMPLE

Some solutions for n=6

.-6...-3....4....1....4....1...-3...-3....1...-3....4...-6....1....4....1...-3

..1....5...-3....4...-2....4....1....2....4...-6...-3...-3....5....1...-6....1

.-3....2...-4...-3...-5....1...-6...-3....1....1...-6...-2...-3...-5....4....2

..4...-6...-2....4....1...-6....6...-5...-5....6....2....4....3....5...-2...-2

..6....3....1...-2...-3....5...-2....6....1....3....1...-1...-2...-5....4...-5

..4...-5...-1...-6....4...-4....1....5....3...-2....6....3...-6....5...-3....1

.-6....4....5....2....1...-1....3...-2...-5....1...-4....5....2...-5....2....6

CROSSREFS

Sequence in context: A258961 A204486 A221807 * A184600 A278093 A259015

Adjacent sequences:  A200040 A200041 A200042 * A200044 A200045 A200046

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 12 2011

STATUS

approved

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Last modified January 24 17:28 EST 2022. Contains 350565 sequences. (Running on oeis4.)