A254831 Number of length 4 1..(n+1) arrays with every leading partial sum divisible by 2, 3 or 5

5, 26, 79, 166, 381, 547, 1000, 1604, 2711, 3568, 5748, 7202, 10309, 13708, 18424, 21680, 29290, 33838, 43620, 53191, 65777, 74117, 92538, 108621, 129911, 150358, 177085, 194481, 234256, 255180, 295309, 334682, 383062, 430087, 495280, 531746

Offset

1,1

Comments

Row 4 of A254827

Links

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

Example

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

Crossrefs

Sequence in context: A309451 A081886 A081530 * A360350 A145013 A096943

Adjacent sequences: A254828 A254829 A254830 * A254832 A254833 A254834

Keyword

nonn

Author

R. H. Hardin, Feb 08 2015

Status

approved