A255720 Number of length 5 1..(n+2) arrays with no leading partial sum equal to a prime and no consecutive values equal

1, 8, 47, 261, 480, 1707, 3764, 8072, 12646, 24669, 34201, 58940, 89397, 135543, 174896, 264549, 327946, 465565, 617508, 818021, 977617, 1318930, 1657755, 2121986, 2611024, 3251371, 3748275, 4735382, 5375729, 6512710, 7733039, 9256904

Offset

1,2

Comments

Row 5 of A255716

Links

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

Example

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

Crossrefs

Cf. A255716

Sequence in context: A177257 A051140 A296631 * A014524 A098891 A054488

Adjacent sequences: A255717 A255718 A255719 * A255721 A255722 A255723

Keyword

nonn

Author

R. H. Hardin, Mar 03 2015

Status

approved