A254951 Number of length 4 1..(n+1) arrays with every leading partial sum divisible by 2, 3, 5, 7 or 11

8, 54, 173, 382, 716, 1160, 1829, 2754, 4165, 5897, 8447, 10559, 14552, 18893, 24599, 29124, 38211, 44418, 56012, 68104, 83390, 94567, 116636, 137429, 163040, 189538, 223132, 246583, 292351, 320360, 368778, 419351, 478271, 539039, 616471, 665644

Offset

1,1

Comments

Row 4 of A254947

Links

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

Example

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

Crossrefs

Sequence in context: A234955 A189393 A350236 * A085537 A085540 A259546

Adjacent sequences: A254948 A254949 A254950 * A254952 A254953 A254954

Keyword

nonn

Author

R. H. Hardin, Feb 10 2015

Status

approved