A258635 Number of length 4 1..(n+1) arrays with every leading partial sum divisible by 2, 3, 5 or 7

8, 50, 130, 264, 511, 830, 1408, 2150, 3370, 4440, 6789, 8523, 12040, 15918, 21093, 25067, 33736, 39265, 50407, 61663, 75967, 86154, 106965, 126656, 151573, 176764, 208836, 230806, 275399, 301753, 349082, 397630, 454178, 512455, 587697, 633984

Offset

1,1

Comments

Row 4 of A258631

Links

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

Example

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

Crossrefs

Cf. A258631

Sequence in context: A299811 A280600 A282774 * A300494 A300933 A300877

Adjacent sequences: A258632 A258633 A258634 * A258636 A258637 A258638

Keyword

nonn

Author

R. H. Hardin, Jun 06 2015

Status

approved