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Number of factorizations with one level of parentheses indexed by prime signatures. A050336(A025487).
1

%I #6 Dec 19 2015 13:22:08

%S 1,1,3,3,6,9,14,23,12,27,31,57,41,58,83,131,119,111,222,154,295,60,

%T 249,322,223,537,482,637,231,698,810,424,1280,1390,1350,745,1811,634,

%U 1955,817,1619,2895,969,2066,3705,2789,2185,4513,2122,4525,1527,4934

%N Number of factorizations with one level of parentheses indexed by prime signatures. A050336(A025487).

%K nonn

%O 1,3

%A _Christian G. Bower_, Oct 15 1999