1,2

Table of n, a(n) for n=1..105.

It seems that a(n)>0, a(n)/log(n) is bounded and sum(k=1, n, a(k)) is asymptotic to c*n*log(n) 1 < c < 1.5.

Cf. A005132.

Sequence in context: A213088 A169809 A214962 * A259576 A030330 A286579

Adjacent sequences: A076255 A076256 A076257 * A076259 A076260 A076261

nonn

Benoit Cloitre, Nov 05 2002

approved