%I #3 Nov 21 2010 17:44:20
%S 7,19,34,37,43,58,67,70,85,88,91,109,118,124,139,142,145,148,154,157,
%T 166,169,175,178,181,184,187,190,193,196
%N Numbers whose trajectory under iteration of sum of cubes of digits eventually turns out to be 370
%C All the numbers are of the form 3n+1. The iteration halts at 370 because 370 itself is equal to the sum of its digits cube.
%e Taking 34 as example, 3^3+4^3=91, 9^3+1=730, 7^3+3^3+0^3=370
%K nonn,base
%O 1,1
%A Avik Roy (avik_3.1416(AT)yahoo.co.in), Jan 16 2009
|