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A188332 Number of nondecreasing arrangements of n nonzero numbers in -(n+6)..(n+6) with sum zero 1

%I

%S 0,8,40,257,1534,9314,56314,341988,2082546,12729304,78083158,

%T 480688451,2969319278,18402445258,114405090020,713334999381,

%U 4460132045862,27960102769656,175711836643538,1106809365488500,6987092970919342

%N Number of nondecreasing arrangements of n nonzero numbers in -(n+6)..(n+6) with sum zero

%C Column 8 of A188333

%H R. H. Hardin, <a href="/A188332/b188332.txt">Table of n, a(n) for n = 1..25</a>

%e Some solutions for n=6

%e .-6..-11...-7...-9..-11..-10...-6...-9..-11..-12...-4...-3..-12...-8..-10..-10

%e .-6..-11...-4...-6...-9...-9...-6...-4...-4...-5...-3...-2..-11...-7..-10...-7

%e .-4...-5...-2...-6...-9...-1...-1...-4....1...-2...-3...-2...-3...-3...-2...-6

%e ..2....7...-2...-3....9....4...-1...-1....1...-2...-1....1....7....2....5....4

%e ..4....9....5...12....9....4....5....7....4...10...-1....3....7....4....7....9

%e .10...11...10...12...11...12....9...11....9...11...12....3...12...12...10...10

%K nonn

%O 1,2

%A _R. H. Hardin_ Mar 28 2011

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Last modified July 24 08:43 EDT 2021. Contains 346273 sequences. (Running on oeis4.)