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A200178 Number of -5..5 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, 5, 7, 19, 31, 72, 186, 460, 891, 1934, 5241, 12431, 25680, 59390, 152436, 359303, 789835, 1853143, 4609254, 10926157, 24817557, 58735668, 144083442, 342433339, 794002110, 1892015431, 4599853709, 10962118986, 25773744159, 61646299147 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 5 of A200181

LINKS

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

EXAMPLE

Some solutions for n=6

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

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

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

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

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

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

CROSSREFS

Sequence in context: A022889 A001562 A163386 * A064101 A018581 A146470

Adjacent sequences:  A200175 A200176 A200177 * A200179 A200180 A200181

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 13 2011

STATUS

approved

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Last modified November 27 12:51 EST 2021. Contains 349394 sequences. (Running on oeis4.)