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Number of factorizations of n into evil numbers.
4

%I #7 Mar 27 2021 08:06:31

%S 1,0,1,0,1,1,0,0,2,1,0,1,0,0,2,0,1,2,0,1,0,0,1,1,1,0,3,0,1,3,0,0,1,1,

%T 0,3,0,0,1,1,0,0,1,0,4,1,0,1,0,1,2,0,1,4,0,0,1,1,0,4,0,0,1,0,1,1,0,1,

%U 1,0,1,3,0,0,3,0,1,1,0,1,4,0,1,0,2,1,1,0,1,7,0,1,0,0,1,1,0,0,2,2,1,3,0,0,1

%N Number of factorizations of n into evil numbers.

%C a(2*n) >= a(n) for n > 1. - _David A. Corneth_, Mar 27 2021

%H David A. Corneth, <a href="/A116488/b116488.txt">Table of n, a(n) for n = 1..10000</a>

%F Dirichlet g.f.: prod{n is in A001969}(1/(1-1/n^s)).

%Y Cf. A001969, A116489, A116490.

%K nonn

%O 1,9

%A _Christian G. Bower_, Feb 17 2006