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

0, 8, 40, 257, 1534, 9314, 56314, 341988, 2082546, 12729304, 78083158, 480688451, 2969319278, 18402445258, 114405090020, 713334999381, 4460132045862, 27960102769656, 175711836643538, 1106809365488500, 6987092970919342

Offset: 1

Author

R. H. Hardin Mar 28 2011

Keywords

• nonn

Comments

Column 8 of A188333

Examples

			Some solutions for n=6
.-6..-11...-7...-9..-11..-10...-6...-9..-11..-12...-4...-3..-12...-8..-10..-10
.-6..-11...-4...-6...-9...-9...-6...-4...-4...-5...-3...-2..-11...-7..-10...-7
.-4...-5...-2...-6...-9...-1...-1...-4....1...-2...-3...-2...-3...-3...-2...-6
..2....7...-2...-3....9....4...-1...-1....1...-2...-1....1....7....2....5....4
..4....9....5...12....9....4....5....7....4...10...-1....3....7....4....7....9
.10...11...10...12...11...12....9...11....9...11...12....3...12...12...10...10
		

Links

• R. H. Hardin, Table of n, a(n) for n = 1..25