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A188207 Number of nondecreasing arrangements of n numbers in -(n+3)..(n+3) with sum zero 1
1, 6, 25, 126, 649, 3486, 19138, 107233, 610358, 3521260, 20547836, 121095602, 719833595, 4311542748, 25999063108, 157723186593, 962014388419, 5896435229442, 36301479759571, 224396764731302, 1392253538833522 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Column 5 of A188211
LINKS
EXAMPLE
Some solutions for n=3
.-5....0...-4...-3...-3...-2...-6...-3...-3...-2...-4...-2...-2...-3...-5...-1
..1....0....2....0...-2....1....1...-3....1....0...-1...-1...-2...-1...-1...-1
..4....0....2....3....5....1....5....6....2....2....5....3....4....4....6....2
CROSSREFS
Sequence in context: A153481 A099359 A073967 * A275541 A082430 A136593
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 24 2011
STATUS
approved

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Last modified March 29 06:57 EDT 2024. Contains 371265 sequences. (Running on oeis4.)