A249471 Number of length 5+4 0..n arrays with no five consecutive terms having four times any element equal to the sum of the remaining four.
416, 6872, 119932, 884728, 5174842, 21824440, 76550058, 231236220, 620927172, 1512868480, 3409871172, 7187658694, 14321688284, 27179247012, 49484565130, 86796151488, 147351090962, 242923972126, 390163791394, 612170875944
Offset: 1
Keywords
Examples
Some solutions for n=3 ..1....2....2....0....3....0....2....1....3....1....1....3....3....2....2....3 ..1....3....3....3....1....0....1....1....2....1....0....2....1....1....0....2 ..0....2....3....0....0....3....1....0....0....2....3....1....0....2....1....3 ..2....1....2....2....2....0....1....3....0....1....1....3....0....3....0....1 ..0....0....1....1....3....2....1....2....0....2....3....0....0....1....0....0 ..0....3....0....3....0....0....2....1....1....1....3....2....1....2....0....1 ..0....0....1....0....1....0....1....0....1....0....3....2....0....3....0....3 ..2....0....2....3....1....0....1....1....2....2....3....0....1....2....3....1 ..3....2....0....2....2....0....2....2....3....3....2....0....1....0....2....1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..65
Comments