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A188209 Number of nondecreasing arrangements of n numbers in -(n+5)..(n+5) with sum zero 1
1, 8, 41, 241, 1394, 8196, 48417, 288100, 1724882, 10388788, 62914457, 382957903, 2342043630, 14385595262, 88716792134, 549159544833, 3411043554787, 21255166581480, 132841213701954, 832537685724170, 5231154448179004 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 7 of A188211

LINKS

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

EXAMPLE

Some solutions for n=3

.-5...-4...-8...-1...-5...-8...-4...-7...-4...-8...-7...-5...-7...-3...-5...-3

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

..5....7....6....2....8....7....4....7....2....8....4....4....8....4....7....3

CROSSREFS

Sequence in context: A051737 A209841 A196927 * A026953 A280068 A304466

Adjacent sequences:  A188206 A188207 A188208 * A188210 A188211 A188212

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 24 2011

STATUS

approved

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Last modified March 21 01:18 EDT 2019. Contains 321356 sequences. (Running on oeis4.)