A249472 Number of length 6+4 0..n arrays with no five consecutive terms having four times any element equal to the sum of the remaining four.
802, 16800, 412972, 3791504, 27309702, 135637752, 549183692, 1882322198, 5658152588, 15260105412, 37735175366, 86590121782, 186608489008, 380873907090, 742312367226, 1387762688078, 2501716768582, 4364708959260
Offset: 1
Keywords
Examples
Some solutions for n=2 ..0....0....1....2....0....1....2....0....1....1....2....0....1....0....0....1 ..0....1....0....1....2....1....2....0....2....2....2....0....1....2....2....2 ..1....1....1....1....0....1....2....1....0....2....2....0....0....0....1....0 ..0....0....0....2....2....0....2....1....0....0....2....2....2....0....0....1 ..0....1....0....2....2....0....1....0....1....2....1....2....2....1....0....2 ..1....1....0....0....0....0....1....0....0....2....2....2....1....1....0....2 ..1....1....1....2....2....2....2....0....0....0....2....0....2....0....2....2 ..2....0....1....0....1....0....2....2....0....2....1....2....1....1....2....1 ..0....1....1....0....1....2....2....0....1....2....1....0....1....0....2....1 ..0....1....1....1....2....2....2....1....2....0....1....0....2....1....2....0
Links
- R. H. Hardin, Table of n, a(n) for n = 1..65
Comments