A114705

zak seidov zakseidov at yahoo.com
Mon Dec 26 07:36:43 CET 2005


Dear seqfans,

Just submitted

%S A114705 
6,14,48,98,372,868,2784,7236,27744,64708,215040,541156,1947840,5168548,23046144,43129476,155189760,444228512,1398675600,3623742864
%N A114705 Sum of divisors of 2^n + 3^n.
%C A114705 All terms are even? Cf. A000203 sigma(n) =
sum of divisors of n.

My questions are:

All terms are even? 
Equation 2^n + 3^n = x^2 has no solution (with integer
x and n)?

Thanks, zak



		
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