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A249235 Number of length 2+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
62, 972, 7736, 36880, 133270, 400152, 1044612, 2427636, 5229990, 10451840, 19688932, 35362972, 60808746, 100653400, 161543020, 251735652, 382345122, 567979396, 826454760, 1180193960, 1658004122, 2293344492, 3127714936 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 2 of A249233

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..49

EXAMPLE

Some solutions for n=5

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

..4....5....5....1....5....1....4....4....5....5....2....3....4....3....2....4

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

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

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

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

..0....3....0....1....4....4....5....0....3....1....1....3....3....4....4....5

CROSSREFS

Sequence in context: A138408 A234482 A157499 * A250564 A231027 A103428

Adjacent sequences:  A249232 A249233 A249234 * A249236 A249237 A249238

KEYWORD

nonn

AUTHOR

R. H. Hardin, Oct 23 2014

STATUS

approved

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Last modified January 26 10:10 EST 2022. Contains 350598 sequences. (Running on oeis4.)