A136744 - OEIS

%I #4 Mar 30 2012 18:50:59

%S 5,1,3,2,4,10,52,81,205,2089,5258,27053,86885,506248,1999385,15873555,

%T 35291389,341118861,1072734242

%N Smallest m such that A136743(m) = n.

%C A136743(a(n)) = n and A136743(m) <> n for m < a(n).

%e a(6)=10: A136743(10) = A001221(A136742(10)) = A001221(39270) =

%e A001221(2*3*5*7*11*17) = 6.

%K nonn

%O 1,1

%A _Reinhard Zumkeller_, Jan 20 2008

%E a(10)-a(19) from _Donovan Johnson_, Feb 18 2010