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A196889 Number of partitions of 2^n into powers of n. 2

%I #6 Mar 30 2012 17:37:35

%S 1,1,4,3,6,9,16,36,85,210,586,1914,6930,28178,125440,603350,3083410,

%T 17362239,112403052,820563290,6632950912,58209665965,544071039000,

%U 5353538904357,58523908575096,730174875609318,10274727352967428,159586345364505768

%N Number of partitions of 2^n into powers of n.

%H Alois P. Heinz, <a href="/A196889/b196889.txt">Table of n, a(n) for n = 0..150</a>

%F a(n) = [x^(2^n)] 1/Product_{j>=0}(1-x^(n^j)).

%e a(3) = 3 because there are 3 partitions of 2^3=8 into powers of 3: [1,1,3,3], [1,1,1,1,1,3], [1,1,1,1,1,1,1,1].

%Y Row n=2 of A196879.

%K nonn

%O 0,3

%A _Alois P. Heinz_, Oct 07 2011

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)