%I

%S 4,5,7,8,9,13,15,52,82,134,216,341,538,1414,17306,17582

%N Indices of prime numbers of trees with n unlabeled nodes.

%F A000055(a(n)) = A119641(n). - _Amiram Eldar_, Apr 22 2018

%Y Cf. A000055, A119641.

%K nonn,more

%O 1,1

%A _Jorge Coveiro_, Jul 27 2006

%E Offset changed by _Michel Marcus_, Apr 22 2018

%E a(13)-a(16) from _Amiram Eldar_, Apr 22 2018