A249207 - OEIS

A249207

Number of length n+6 0..3 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

14336, 51200, 183516, 658448, 2363528, 8486156, 30475714, 109474166, 393232196, 1412652056, 5075187032, 18233890510, 65510631030, 235369064306, 845649181758, 3038313571704, 10916323664982, 39221255161200, 140918266479766

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

OFFSET

1,1

COMMENTS

Column 3 of A249212

LINKS

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

EXAMPLE

Some solutions for n=3

..0....0....2....2....0....2....0....2....2....2....2....2....0....2....0....2

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

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A064965 A072890 A249314 * A049442 A228468 A296813

Adjacent sequences: A249204 A249205 A249206 * A249208 A249209 A249210

KEYWORD

nonn

AUTHOR

R. H. Hardin, Oct 23 2014

STATUS

approved