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

Author

Benoit Cloitre, Apr 17 2003

Keywords

• nonn

Comments

Sequence presents fractal patterns.

Links

• Boris Gourevitch, Graph of a(n).

Crossrefs

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

Formula

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

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