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A200177 Number of -4..4 arrays x(0..n-1) of n elements with zero sum and no two consecutive declines, no adjacent equal elements, and no element more than one greater than the previous (random base sawtooth pattern) 1
1, 4, 5, 14, 24, 48, 100, 280, 608, 1094, 2558, 6656, 14475, 29638, 69174, 170043, 384938, 830598, 1910747, 4608078, 10600467, 23514477, 54265809, 129118292, 298774740, 676277578, 1564120363, 3687870415, 8572421420, 19643806169 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 4 of A200181

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..200

EXAMPLE

Some solutions for n=6

..2....0....1....1....3....0....4....3....3....0....4....2....0....2....1....2

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

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

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

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

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

CROSSREFS

Sequence in context: A306897 A348889 A006904 * A241863 A350527 A316415

Adjacent sequences: A200174 A200175 A200176 * A200178 A200179 A200180

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 13 2011

STATUS

approved

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Last modified February 7 16:06 EST 2023. Contains 360128 sequences. (Running on oeis4.)