A249208 - OEIS

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A249208

Number of length n+6 0..4 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.

67452, 294568, 1287632, 5630090, 24619804, 107662502, 470797744, 2058664560, 9001977388, 39365277268, 172144857638, 752792969116, 3291974345050, 14395810506738, 62952737744654, 275291694008054, 1203850204876356

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Column 4 of A249212

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=1

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A359334 A226529 A198537 * A234120 A101697 A247221

Adjacent sequences: A249205 A249206 A249207 * A249209 A249210 A249211

KEYWORD

nonn

AUTHOR

R. H. Hardin, Oct 23 2014

STATUS

approved