%I #3 Oct 11 2020 22:33:30

%S 1,1,1,1,4,2,4,47,6,6,462,372,1589,20896

%N Number of divisor chains of length 2n+1 which are both cyclic and anchored.

%C 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.

%Y Cf. A067957, A094096, A094098, A094099.

%K nonn,more

%O 0,5

%A _Christopher Landauer_, May 04, 2004.