A255713 Number of length n 1..(5+2) arrays with no leading partial sum equal to a prime and no consecutive values equal

3, 9, 33, 120, 480, 2079, 9044, 39604, 170835, 720348, 3105394, 14050148, 64838808, 295178921, 1315098518, 5765163507, 25132740083, 110592507674, 498297998116, 2314042703759, 10991409243669, 52236818282458, 242186086327901

Offset

1,1

Comments

Column 5 of A255716

Links

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

Example

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

Crossrefs

Cf. A255716

Sequence in context: A148994 A148995 A148996 * A148997 A082841 A151038

Adjacent sequences: A255710 A255711 A255712 * A255714 A255715 A255716

Keyword

nonn

Author

R. H. Hardin, Mar 03 2015

Status

approved