A244784 Number of length n 0..4 arrays with each partial sum starting from the beginning no more than one standard deviation from its mean.

3, 13, 51, 201, 941, 4153, 18143, 87353, 405423, 1865359, 8547093, 39098077, 190729523, 907786567, 4292846081, 20230294033, 95161072323, 467762504103, 2259396954323, 10859408587343, 52047262337997, 249044033481767

Offset

1,1

Comments

Column 4 of A244788

Links

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

Example

Some solutions for n=10
..1....1....1....1....1....1....1....1....1....1....1....1....1....1....1....1
..1....1....1....1....1....1....1....1....1....1....1....1....1....1....1....1
..4....4....2....3....3....4....4....3....3....4....3....3....3....4....4....4
..3....2....4....1....2....2....2....1....4....0....2....4....3....3....3....3
..1....3....1....4....4....3....1....3....4....2....3....2....1....2....2....2
..1....3....3....4....2....2....4....2....0....2....0....2....2....2....3....0
..3....3....3....0....0....2....1....0....0....1....3....1....3....0....1....3
..4....2....2....4....4....3....3....2....2....1....0....2....4....0....0....1
..1....2....2....1....1....2....1....1....2....4....3....0....2....3....2....0
..1....1....1....3....1....0....3....2....3....2....2....1....0....2....0....3

Crossrefs

Sequence in context: A304629 A301458 A371837 * A197074 A014985 A015521

Adjacent sequences: A244781 A244782 A244783 * A244785 A244786 A244787

Keyword

nonn

Author

R. H. Hardin, Jul 06 2014

Status

approved