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A249236 Number of length 3+5 0..n arrays with no six consecutive terms having two times the sum of any two elements equal to the sum of the remaining four 1
92, 1944, 21648, 128436, 556024, 1974784, 5967084, 15714420, 38247620, 85101320, 176828220, 348467560, 652542984, 1168383332, 2021263648, 3377139576, 5476158948, 8658723556, 13363266788, 20175405532, 29898470296, 43507494332 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 3 of A249233

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..31

EXAMPLE

Some solutions for n=4

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

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A269439 A269623 A265923 * A166824 A248451 A017808

Adjacent sequences:  A249233 A249234 A249235 * A249237 A249238 A249239

KEYWORD

nonn

AUTHOR

R. H. Hardin, Oct 23 2014

STATUS

approved

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Last modified May 18 23:31 EDT 2022. Contains 353826 sequences. (Running on oeis4.)