%N a(n) = the number of divisors of n that are each not coprime to any adjacent (previous or following) divisor of n.
%H Diana Mecum, <a href="/A136167/b136167.txt">Table of n, a(n) for n = 1..1000</a>
%e The divisors of 28 are 1,2,4,7,14,28. Among adjacent pairs of divisors, 1 and 2 are coprime and 4 and 7 are coprime. Therefore there are a(28) =2 divisors that are each not next to any divisor they are coprime to. (These two divisors are 14 and 28.)
%Y Cf. A136164, A136165, A136166.
%A _Leroy Quet_, Dec 17 2007
%E More terms from _Diana L. Mecum_, Jul 13 2008