|
%I #8 Nov 01 2013 21:42:17
%S 2,3,3,4,4,5,4,5,6,5,6,5,7,6,7,6,8,7,6,8,7,9,8,7,9,8,7,10,9,8,10,9,8,
%T 11,10,9,8,11,10,9,12,11,10,9,12,11,10,13,9,12,11,10,13,12,11,14,10,
%U 13,12,11,14,10,13,12,15,11,14,13,12,15,11,14,13,16,12,15,11,14,13,16,12,15,14,17,13,16,12,15,14,17,13,16,12,15,18,14,17,13
%N Sum i + j for integers 2^i*3^j (A033845).
%C Upper and lower boundaries of the graph are almost exactly quadratic curves.
%H Zak Seidov, <a href="/A227861/b227861.txt">Table of n, a(n) for n = 1..10000</a>
%F a(n) = A191475(n) + A191476(n).
%e a(10) = 5 because A033845(10) = 108 = 2^2 + 3^3 => A191475(10) = 2, A191476(10) = 3.
%Y Cf. A033845, A191475, A191476.
%K nonn
%O 1,1
%A _Zak Seidov_, Nov 01 2013
|
