0,2

Sequence consists of A011782(n) n+1's - Jon Perry (perry(AT)globalnet.co.uk), Apr 04 2004

For n>0: a(n) = A003314(n+1)-A003314(n) = A123753(n)-A123753(n-1). - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Oct 12 2006

Index entries for sequences related to binary expansion of n

Let b(1)=1, b(n)=a(n-floor(n/2))+1, then a(n)=b(n+1). - Benoit Cloitre (benoit7848c(AT)orange.fr), Oct 23 2002

G.f.: 1/(1-x) * (1 + Sum(k>=0, x^2^k)). - Ralf Stephan (ralf(AT)ark.in-berlin.de), Apr 15 2002

a(n) = ceil(log_2(n+1))+1 = A029837(n+1)+1. - Ralf Stephan (ralf(AT)ark.in-berlin.de), Apr 15 2002

a(n)=ceil(average of previous entries)+1 - Jon Perry (perry(AT)globalnet.co.uk), Apr 04 2004

(PARI) a(n)=length(binary(2*n+1))

Bisection of A070939 and also of A070940.

Sequence in context: A132983 A029133 A029128 this_sequence A061775 A080604 A029118

Adjacent sequences: A070938 A070939 A070940 this_sequence A070942 A070943 A070944

nonn

N. J. A. Sloane (njas(AT)research.att.com), May 18 2002