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A188179 Number of strictly increasing arrangements of n numbers in -(n+5)..(n+5) with sum zero 1
1, 7, 32, 150, 649, 2739, 11322, 46029, 184717, 734517, 2900900, 11396054, 44585180, 173885716, 676537634, 2627337510, 10188889502, 39470938574, 152787805216, 591094837268, 2285918145819, 8838165075791, 34167434076214, 132084761317107 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 7 of A188181

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..26

EXAMPLE

Some solutions for n=5

.-4...-9...-9...-8...-7...-7..-10...-7..-10..-10...-9...-9..-10...-9...-6...-7

.-3...-7...-5...-5...-3...-3...-5...-3....0...-8...-4...-3...-7...-4...-2...-2

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

..0....7....7....7....3....3....4....3....4....6....5....2....4....5....3....2

..8....9....9....9....5....8....9....6....5...10....7...10...10...10....5....7

CROSSREFS

Sequence in context: A034360 A268745 A199845 * A050148 A188208 A302995

Adjacent sequences: A188176 A188177 A188178 * A188180 A188181 A188182

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 23 2011

STATUS

approved

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Last modified December 8 01:51 EST 2022. Contains 358672 sequences. (Running on oeis4.)