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A249217 Number of length 5+6 0..n arrays with no seven consecutive terms having five times the sum of any two elements equal to two times the sum of the remaining five 0
1952, 80354, 2363528, 24619804, 181549572, 985612414, 4386401650, 16181960396, 52677240496, 151529682640, 402510784944, 980816185390, 2256668468018, 4888182757724, 10136422535096 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 5 of A249212

LINKS

Table of n, a(n) for n=1..15.

EXAMPLE

Some solutions for n=2

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

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

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

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

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A251843 A249202 A249324 * A155809 A116211 A234560

Adjacent sequences:  A249214 A249215 A249216 * A249218 A249219 A249220

KEYWORD

nonn

AUTHOR

R. H. Hardin, Oct 23 2014

STATUS

approved

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Last modified June 17 22:14 EDT 2021. Contains 345086 sequences. (Running on oeis4.)