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A202958 Number of arrays of n+2 integers in -4..4 with sum zero and adjacent elements differing in absolute value 1
36, 268, 1562, 9884, 66208, 447528, 3020170, 20430512, 139027620, 950710524, 6520317018, 44823140280, 308853569150, 2132736199028, 14754220477302, 102231808797944, 709381651755672, 4928801328948764, 34285920139143690 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 4 of A202962
LINKS
EXAMPLE
Some solutions for n=5
..2...-3....0...-3....0....1....2....4...-2...-3....0....1...-3....4...-1...-1
..3....1...-1...-1...-3....0...-3...-3....0...-1...-4...-2...-4...-2....4....0
..0...-2...-3....0...-4...-1....4...-4....4....3....1....1....3....0....2....2
.-1....1...-2....3....2....4...-1....1....2....2....4...-4....0....3....1...-1
.-2....2....1....4....0....0....3....3....1....1....3....0....3...-2...-3...-3
..1....4....4...-1....1...-4...-4....1...-3...-3....0....1...-2....0....0....4
.-3...-3....1...-2....4....0...-1...-2...-2....1...-4....3....3...-3...-3...-1
CROSSREFS
Sequence in context: A115223 A135181 A220159 * A187511 A185243 A014136
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 26 2011
STATUS
approved

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Last modified March 28 03:28 EDT 2024. Contains 371235 sequences. (Running on oeis4.)