A083038 A fractal sequence.

1, 1, 0, 0, 1, 1, 2, 4, 5, 5, 6, 6, 5, 5, 6, 6, 5, 5, 4, 2, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 2, 4, 5, 5, 6, 6, 5, 5, 6, 6, 7, 9, 10, 10, 11, 13, 14, 16, 19, 21, 22, 24, 25, 25, 26, 28, 29, 29, 30, 30, 29, 29, 30, 30, 31, 33, 34, 34, 35, 35, 34, 34, 35, 35, 34, 34, 33, 31, 30, 30, 29, 29, 30, 30

Offset

1,7

Comments

Sequence presents fractal patterns.

Links

Table of n, a(n) for n=1..84.

Boris Gourevitch, Graph of a(n).

Formula

a(n)=sum(k=1, n, A083037(k))

a(2*A001109(n)-1)=A001109(n) - Benoit Cloitre, Dec 12 2003

Crossrefs

Cf. A083035, A083036, A083037, A071992 (which presents similar fractal aspects).

Sequence in context: A227401 A380110 A131813 * A061008 A256720 A091988

Adjacent sequences: A083035 A083036 A083037 * A083039 A083040 A083041

Keyword

nonn

Author

Benoit Cloitre, Apr 17 2003

Status

approved