A258629 Number of length n 1..(6+1) arrays with every leading partial sum divisible by 2, 3, 5 or 7

6, 36, 179, 830, 4021, 20462, 105719, 546640, 2789557, 14124297, 72747664, 384855118, 2060047003, 10964114671, 57622430383, 299660342435, 1554362454308, 8134330914022, 43385023307315, 236387936969270, 1304057368544653

Offset

1,1

Comments

Column 6 of A258631

Links

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

Example

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

Crossrefs

Cf. A258631

Sequence in context: A224130 A283197 A218265 * A294465 A074444 A348568

Adjacent sequences: A258626 A258627 A258628 * A258630 A258631 A258632

Keyword

nonn

Author

R. H. Hardin, Jun 06 2015

Status

approved