A050355 - OEIS

%I #5 Dec 19 2015 13:30:27

%S 1,1,3,5,9,21,27,81,37,81,111,297,201,243,513,1053,945,729,2187,1317,

%T 3645,365,2745,4077,2187,8829,7209,12393,2433,13257,16605,6561,34263,

%U 35397,41553,13473,59697,10155,64881,19683,44793,129033,18993,71307

%N Ordered factorizations with one level of parentheses indexed by prime signatures. A050354(A025487).

%K nonn

%O 1,3

%A _Christian G. Bower_, Oct 15 1999