A255715 Number of length n 1..(7+2) arrays with no leading partial sum equal to a prime and no consecutive values equal

5, 24, 121, 653, 3764, 22155, 127375, 721134, 4201419, 25338485, 153827211, 920423497, 5427375260, 32034890790, 192848262264, 1192406909119, 7468582235924, 46184458084732, 277578788510692, 1635584886442562

Offset

1,1

Comments

Column 7 of A255716

Links

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

Example

Some solutions for n=4
..8....9....1....4....4....8....9....4....9....1....6....9....6....9....1....1
..4....7....3....6....8....4....1....5....6....7....9....7....2....3....7....3
..2....9....5....4....9....6....8....3....7....6....1....4....6....8....1....8
..1....8....1....8....3....2....2....2....6....1....5....8....4....7....7....4

Crossrefs

Cf. A255716

Sequence in context: A017977 A017978 A291245 * A163610 A055825 A006326

Adjacent sequences: A255712 A255713 A255714 * A255716 A255717 A255718

Keyword

nonn

Author

R. H. Hardin, Mar 03 2015

Status

approved