A076902 a(1)=1, a(n) = floor(n/2) - a(floor(n/2)).

1, 0, 0, 2, 2, 3, 3, 2, 2, 3, 3, 3, 3, 4, 4, 6, 6, 7, 7, 7, 7, 8, 8, 9, 9, 10, 10, 10, 10, 11, 11, 10, 10, 11, 11, 11, 11, 12, 12, 13, 13, 14, 14, 14, 14, 15, 15, 15, 15, 16, 16, 16, 16, 17, 17, 18, 18, 19, 19, 19, 19, 20, 20, 22, 22, 23, 23, 23, 23, 24, 24, 25, 25, 26, 26, 26, 26

Offset

1,4

Links

Table of n, a(n) for n=1..77.

Formula

a(n) is asymptotic to n/3; conjecture: abs(a(n)-n/3) < log(n+1).

a(n) = A068639(n) - A065359(n) + (-1)^floor(log_2(n)) = A050292(n) - A068639(n) + (-1)^floor(log_2(n)). - Ralf Stephan, Oct 27 2003

Crossrefs

Cf. A050292, A065359, A068639.

Sequence in context: A059906 A349196 A112046 * A287271 A290884 A332383

Adjacent sequences: A076899 A076900 A076901 * A076903 A076904 A076905

Keyword

nonn

Author

Benoit Cloitre, Nov 26 2002

Status

approved