2,1

Define a(n) to be the numerator of a fraction sequence F(n) Define triangular numbers ( A000217 ) as the denominator of the fraction sequence F(n) Conjecture : as n tends to infinity F(n) tends to Log(e*pi/2) e=2,718281... pi=3.141592... I have computed the values of A055211 up to n=1725

Cf. A000217 A055211 A098166.

Sequence in context: A078476 A099056 A046691 this_sequence A081689 A104813 A039745

Adjacent sequences: A098164 A098165 A098166 this_sequence A098168 A098169 A098170

nonn

Pierre CAMI (pierrecami(AT)tele2.fr), Aug 30 2004