[seqfan] A226809: 28 = 3^1 +5^2 = 3^3+5^0 .

[Zak Seidov]

https://oeis.org/A226809 Numbers of the form 3^j + 5^k, for j and k >= 0. 

Is 28 the only number with two representations  as 3^j + 5^k, for j and k >= 0?

Worth commenting in A226809?
-- 
Zak  Seidov