A249203 Number of length 6+6 0..n arrays with no seven consecutive terms having four times the sum of any three elements equal to three times the sum of the remaining four

3872, 208876, 7758744, 102366154, 907556600, 5613806736, 28830275130, 120170303776, 431319297246, 1365200639648, 3922855013334, 10310585311338, 25371620649554, 58894739979154, 129619122923038

Offset

1,1

Comments

Row 6 of A249197

Links

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

Example

Some solutions for n=1
..0....1....1....0....1....1....0....0....1....0....0....1....1....0....0....0
..1....0....0....1....0....0....1....0....1....0....1....0....0....0....0....0
..0....1....0....0....0....0....0....1....0....0....1....1....1....1....1....0
..0....0....0....0....0....0....1....1....1....0....0....1....1....0....0....1
..1....0....1....1....1....0....0....1....0....1....0....1....0....1....1....1
..0....0....1....1....0....1....0....0....0....0....1....0....0....1....1....0
..0....1....0....1....1....0....0....1....0....1....0....1....0....1....0....1
..1....0....0....0....0....0....1....0....0....1....0....0....1....0....1....0
..0....0....0....0....1....0....1....1....0....1....1....1....0....0....0....0
..1....1....1....0....0....1....0....0....1....1....0....0....1....1....0....0
..0....0....0....1....0....1....0....0....1....1....1....1....1....1....1....0
..1....0....1....0....1....1....1....1....0....1....1....0....1....1....0....1

Crossrefs

Sequence in context: A204784 A204783 A035898 * A249325 A249218 A264206

Adjacent sequences: A249200 A249201 A249202 * A249204 A249205 A249206

Keyword

nonn

Author

R. H. Hardin, Oct 23 2014

Status

approved