1,1

Table of n, a(n) for n=1..78.

A040003 (cfrac for n=1) has period length 2, so a(1)=2. A040019 (cfrac for n=2) has period length 2, so a(2)=2. A010140 (cfrac for n=3) has period length 6, so a(3)=6. - R. J. Mathar, Feb 10 2016

Sequence in context: A061915 A138565 A137316 * A305353 A134458 A193819

Adjacent sequences: A064848 A064849 A064850 * A064852 A064853 A064854

nonn

R. K. Guy, Oct 26 2001

approved