A249193 Number of length n+6 0..4 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

66948, 290032, 1257084, 5448778, 23617364, 102366154, 443680650, 1922960684, 8334332160, 36123881064, 156575247076, 678660006282, 2941578932578, 12749918917958, 55262852586686, 239529579489960, 1038211719566316

Offset

1,1

Comments

Column 4 of A249197

Links

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

Example

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

Crossrefs

Sequence in context: A235245 A252991 A340404 * A238068 A235892 A253976

Adjacent sequences: A249190 A249191 A249192 * A249194 A249195 A249196

Keyword

nonn

Author

R. H. Hardin, Oct 23 2014

Status

approved