A249091 Number of length 6+5 0..n arrays with every six consecutive terms having two times the sum of some two elements equal to the sum of the remaining four

22, 243, 8504, 83045, 412334, 2439587, 9128450, 26718133, 77477206, 186461959, 393375414, 815573943, 1532600102, 2665869517, 4588603836, 7429078523, 11465527204, 17540618531, 25835346484, 36786441199, 52063130104, 71754093333

Offset

1,1

Comments

Row 6 of A249085

Links

R. H. Hardin, Table of n, a(n) for n = 1..29

Example

Some solutions for n=4
..0....3....2....2....3....2....4....1....4....1....3....3....4....1....4....2
..1....3....3....1....1....1....0....3....3....0....2....0....3....2....2....4
..4....1....3....4....2....0....2....3....1....3....1....2....1....3....2....1
..0....1....4....0....3....0....0....4....4....0....2....3....0....4....0....3
..3....3....3....4....3....0....0....1....3....1....3....2....1....4....2....3
..1....1....3....4....3....0....0....3....3....1....4....2....3....1....2....2
..3....3....2....2....3....2....1....1....4....1....3....0....4....1....1....2
..4....3....0....4....4....4....0....0....3....3....2....0....3....2....2....4
..1....4....0....4....2....3....2....0....1....0....1....2....4....3....2....4
..0....1....1....3....0....0....0....4....4....3....2....0....0....4....3....0
..0....3....3....4....3....0....3....4....3....1....3....2....1....4....2....3

Crossrefs

Sequence in context: A249088 A249089 A249090 * A041930 A249092 A125410

Adjacent sequences: A249088 A249089 A249090 * A249092 A249093 A249094

Keyword

nonn

Author

R. H. Hardin, Oct 20 2014

Status

approved