A249213 Number of length 1+6 0..n 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

126, 1792, 14336, 67452, 242494, 714980, 1826748, 4173442, 8762390, 17110282, 31597020, 55472158, 93560894, 152043682, 239777076, 367458644, 550136314, 805205100, 1156638980, 1631284144, 2265657954, 3099326244, 4185802572

Offset

1,1

Comments

Row 1 of A249212

Links

R. H. Hardin, Table of n, a(n) for n = 1..41

Example

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

Crossrefs

Sequence in context: A249212 A249319 A249198 * A249320 A267628 A304559

Adjacent sequences: A249210 A249211 A249212 * A249214 A249215 A249216

Keyword

nonn

Author

R. H. Hardin, Oct 23 2014

Status

approved