A202003 - OEIS

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A202003

Number of -5..5 circular arrays x(0..n+1) of n+2 elements with zero sums of x(i) and x(i)*x((i+1) mod (n+2))

1, 121, 111, 2467, 14365, 221433, 1519417, 14540551, 130169953, 1459090675, 13589734965, 144206621427, 1452277199421, 15257211367065, 154052512468551, 1608600212618455, 16545700784493591, 173783329255817551 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	COMMENTS	`Column 5 of A202006`
	LINKS	`R. H. Hardin, Table of n, a(n) for n = 1..40`
	EXAMPLE	`Some solutions for n=5` `..2...-3...-1....3...-4....1....2...-3....0...-2....5....0....0...-3....2...-3` `..3...-5...-1....0....2...-5....2....4....1....3....2....3...-3...-1....1...-4` `.-1....4....3....1....3....0...-3....0....2....5...-5....1....0...-4...-3....4` `..1....4....0...-4....1....0...-5....0...-2...-4...-3...-3....0....2...-2...-1` `..2...-1....2...-2...-2....1....3....4...-1...-4....3...-2....3....1....2....5` `.-5...-1...-1....2....1....1....2...-1....0....1...-2...-3....0....2....1....2` `.-2....2...-2....0...-1....2...-1...-4....0....1....0....4....0....3...-1...-3`
	CROSSREFS	`Sequence in context: A152144 A282344 A249627 * A109838 A014734 A137517` `Adjacent sequences: A202000 A202001 A202002 * A202004 A202005 A202006`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin Dec 07 2011`
	STATUS	`approved`

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Last modified June 3 12:27 EDT 2024. Contains 373060 sequences. (Running on oeis4.)