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A183923 Number of nondecreasing arrangements of n numbers in -5..5 with sum zero and sum of squares not greater than n*30/3 1
1, 4, 12, 37, 93, 220, 476, 979, 1888, 3493, 6187, 10619, 17646, 28558, 45007, 69453, 104985, 155861, 227488, 327057, 463466, 648333, 895855, 1224083, 1654923, 2215739, 2939098, 3865358, 5042160, 6527147, 8388454, 10707515, 13578946 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Column 5 of A183927
LINKS
EXAMPLE
Some solutions for n=4
.-5...-5...-3...-3...-2...-3...-4....0...-4...-4...-2...-3...-2...-1...-2...-3
..1....0...-3...-3...-1....0...-1....0....0....1...-1...-2...-2...-1...-2...-2
..2....2....3....2....0....1....2....0....1....1....1....0....0...-1....2....1
..2....3....3....4....3....2....3....0....3....2....2....5....4....3....2....4
CROSSREFS
Sequence in context: A164853 A076124 A247952 * A349053 A279277 A101555
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 08 2011
STATUS
approved

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Last modified July 17 05:50 EDT 2024. Contains 374360 sequences. (Running on oeis4.)