A254543 Number of length 5 1..(n+2) arrays with no leading partial sum equal to a prime

4, 50, 135, 670, 1087, 3383, 6814, 13843, 20012, 37643, 50271, 84258, 124243, 185263, 233753, 347471, 423430, 594001, 776949, 1021618, 1205883, 1612046, 2004761, 2549617, 3112664, 3856074, 4411319, 5541449, 6253712, 7547845, 8918038

Offset

1,1

Comments

Row 5 of A254539

Links

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

Example

Some solutions for n=4
..6....4....6....6....6....6....6....4....6....6....4....1....4....4....6....4
..6....5....3....4....2....3....6....2....4....2....5....3....5....5....4....5
..4....6....3....2....6....5....3....2....4....6....3....5....6....1....6....1
..6....1....4....6....6....1....3....1....4....1....3....3....3....5....5....5
..2....6....2....2....4....1....3....5....4....1....5....6....2....6....1....5

Crossrefs

Sequence in context: A048559 A356082 A319139 * A321590 A274872 A189894

Adjacent sequences: A254540 A254541 A254542 * A254544 A254545 A254546

Keyword

nonn

Author

R. H. Hardin, Feb 01 2015

Status

approved