A249462 Number of length n+4 0..4 arrays with no five consecutive terms having four times any element equal to the sum of the remaining four.

2640, 11260, 48180, 206428, 884728, 3791504, 16249428, 69646680, 298527530, 1279613894, 5484967770, 23510991158, 100778855292, 431985293958, 1851693204500, 7937234390598, 34022755120144, 145837709303458

Offset: 1

Author

R. H. Hardin, Oct 29 2014

Keywords

• nonn

Comments

Column 4 of A249466.

Examples

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

Links

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

Crossrefs

Cf. A249466.