1,3

A divisor chain of length n is an arrangement of 1..n such that each term is a divisor of the sum of the preceding terms.

Table of n, a(n) for n=1..34.

Cf. A067957, A094097, A094099.

Sequence in context: A005868 A035455 A029191 * A182485 A164960 A124137

Adjacent sequences: A094095 A094096 A094097 * A094099 A094100 A094101

nonn

Chris Landauer (cal(AT)aero.org), May 04, 2004.

a(29)-a(34) from John W. Layman, May 07 2004

approved