A200037 - OEIS

A200037

Number of -7..7 arrays x(0..n-1) of n elements with sum zero and with zeroth through n-1st differences all nonzero

0, 14, 114, 1330, 14156, 169170, 1882238, 22017152, 254776338 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	COMMENTS	`Column 7 of A200038`
	LINKS	`Table of n, a(n) for n=1..9.`
	EXAMPLE	`Some solutions for n=6` `..3...-7...-7...-3....4...-4...-4...-3....1...-7...-5...-3....3....4...-7....1` `.-4....1....7....2....3...-5....3....2...-5....4....7....2...-6....3....7....7` `.-5...-1...-3....1...-7....6...-2....3....4....5....5...-5....2...-5...-1...-1` `..5...-2....3...-5...-3....2....4...-4...-6....4...-4....2...-2....2...-6....4` `..6....5....5...-1....2....5....5...-1...-1...-4....4....1....1...-6....6...-7` `.-5....4...-5....6....1...-4...-6....3....7...-2...-7....3....2....2....1...-4`
	CROSSREFS	`Sequence in context: A071573 A076429 A027204 * A026959 A026989 A204240` `Adjacent sequences: A200034 A200035 A200036 * A200038 A200039 A200040`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin Nov 12 2011`
	STATUS	`approved`

Last modified March 21 19:39 EDT 2023. Contains 361410 sequences. (Running on oeis4.)