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A253135 Number of length 7+2 0..n arrays with the sum of medians of adjacent triples multiplied by some arrangement of +-1 equal to zero 1
256, 9205, 119317, 866944, 4373134, 16987236, 54817908, 153203700, 382427902, 870816931, 1838833115, 3646368028, 6856114327, 12312181791, 21251285131, 35433012016, 57295925135, 90169126459, 138505569304, 208154690963 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 7 of A253129

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..22

EXAMPLE

Some solutions for n=3

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

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

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A236214 A232959 A187955 * A128991 A230973 A191680

Adjacent sequences:  A253132 A253133 A253134 * A253136 A253137 A253138

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 27 2014

STATUS

approved

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Last modified October 18 18:03 EDT 2021. Contains 348068 sequences. (Running on oeis4.)