A255722 Number of length 7 1..(n+2) arrays with no leading partial sum equal to a prime and no consecutive values equal

1, 19, 256, 3435, 9044, 45735, 127375, 346499, 667623, 1659159, 2752326, 5689368, 9976897, 17538154, 25598415, 44565127, 61843772, 99471988, 145959173, 215170467, 281539258, 421251283, 576147610, 807868670, 1076649303, 1462427055

Offset

1,2

Comments

Row 7 of A255716

Links

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

Example

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

Crossrefs

Cf. A255716

Sequence in context: A021394 A016316 A021154 * A016313 A335515 A017917

Adjacent sequences: A255719 A255720 A255721 * A255723 A255724 A255725

Keyword

nonn

Author

R. H. Hardin, Mar 03 2015

Status

approved