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A199845 Number of -6..6 arrays x(0..n-1) of n elements with zero sum and no element more than one greater than the previous 1
1, 7, 32, 149, 630, 2600, 10426, 41079, 159330, 611698, 2329458, 8818874, 33234990, 124835120, 467743203, 1749482957, 6535398559, 24393753898, 91006458115, 339442473410, 1266045976128, 4722720042212, 17621749081077, 65775214030886 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 6 of A199847

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..165

EXAMPLE

Some solutions for n=6

..0....4....6....6....1....2....4....6....6....5....6....6....3....4....5....5

..1....1....4....5....1....2...-2....2....4....2....4....2....2....2....6...-1

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

.-2....0...-1...-5....1....1....0...-1...-2...-3...-2...-3....0....2...-3...-1

.-1...-2...-5...-4....1...-1....0...-3...-1...-2...-4...-2...-2...-4...-5....0

..0...-5...-4...-4...-4...-5...-1...-3...-5...-2...-4...-1...-5...-6...-4...-1

CROSSREFS

Sequence in context: A249999 A034360 A268745 * A188179 A050148 A188208

Adjacent sequences:  A199842 A199843 A199844 * A199846 A199847 A199848

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 11 2011

STATUS

approved

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Last modified June 25 08:27 EDT 2021. Contains 345453 sequences. (Running on oeis4.)