A254544 Number of length 6 1..(n+2) arrays with no leading partial sum equal to a prime.
6, 126, 421, 3001, 5604, 20393, 45472, 102595, 161277, 338402, 489034, 893944, 1412682, 2264545, 3019845, 4792281, 6143391, 9149646, 12553350, 17386054, 21421963, 30096986, 38927373, 51682575, 65462507, 84502439, 100115923
Offset: 1
Keywords
Examples
Some solutions for n=4 ..6....6....4....4....1....1....4....1....4....6....4....1....1....6....1....6 ..2....2....6....4....5....5....6....3....5....3....6....5....5....4....5....3 ..4....2....4....6....4....2....4....4....3....3....4....3....2....5....3....3 ..4....4....4....1....6....6....6....2....2....6....1....5....6....1....6....3 ..4....6....6....5....6....6....5....2....2....4....1....4....1....4....3....1 ..2....6....3....6....6....4....5....3....2....3....2....4....6....6....4....4
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
Comments