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A183925 Number of nondecreasing arrangements of n numbers in -7..7 with sum zero and sum of squares not greater than n*56/3 1
1, 5, 22, 83, 262, 794, 2117, 5278, 12584, 27893, 58831, 120973, 235504, 443653, 821738, 1459822, 2529977, 4337998, 7192569, 11698167, 18893169, 29678739, 45907880, 70687245, 106315189, 157902365, 233830545, 339336920, 487306673 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Column 7 of A183927
LINKS
EXAMPLE
Some solutions for n=4
.-3...-5...-5...-3...-6...-6...-3...-5...-2...-6...-6...-4...-4...-3...-2...-2
..1...-2...-1...-1....2....0...-3...-1...-1...-1....1...-3...-2...-1...-1...-2
..1....2....0....0....2....3....0....1....0....2....1....0...-1....2....1...-1
..1....5....6....4....2....3....6....5....3....5....4....7....7....2....2....5
CROSSREFS
Sequence in context: A234351 A255802 A266358 * A296583 A216041 A122058
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 08 2011
STATUS
approved

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Last modified July 15 07:59 EDT 2024. Contains 374324 sequences. (Running on oeis4.)