A255714 Number of length n 1..(6+2) arrays with no leading partial sum equal to a prime and no consecutive values equal

4, 17, 75, 342, 1707, 8814, 45735, 229317, 1129024, 5744720, 30448145, 163328140, 866397895, 4515528539, 23325358076, 121500213369, 648072229596, 3549923527103, 19654222272276, 107149613713782, 565522043746019

Offset

1,1

Comments

Column 6 of A255716

Links

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

Example

Some solutions for n=4
..8....8....4....6....8....1....6....8....4....4....4....8....8....1....1....8
..7....1....6....2....2....8....8....2....8....2....5....7....1....5....3....7
..6....6....8....8....8....6....6....5....6....4....3....1....5....4....4....5
..3....3....7....5....2....3....2....1....3....6....2....8....2....6....6....4

Crossrefs

Cf. A255716

Sequence in context: A026378 A346740 A265680 * A151247 A290914 A117439

Adjacent sequences: A255711 A255712 A255713 * A255715 A255716 A255717

Keyword

nonn

Author

R. H. Hardin, Mar 03 2015

Status

approved