1,2

Conjecture. For even n, the ratio a(n)/a(n-1) is asymptotic to 2 as n becomes large. (At n=3000, the ratio is 2.0004446.)

Table of n, a(n) for n=1..71.

Cf. A094077.

Sequence in context: A340286 A194078 A169752 * A318460 A276582 A240729

Adjacent sequences: A095717 A095718 A095719 * A095721 A095722 A095723

nonn

John W. Layman, Jul 08 2004

approved