%I A074402
%S A074402 1,2,3,4,5,6,7,8,9,10,12,13,14,15,16,18,20,21,22,24,25,26,27,28,30,32,
%T A074402 33,35,36,37,39,40,42,44,45,48,49,50,52,54,56,57,58,60,63,64,65,66,70,
%U A074402 72,74,75,78,80,81,84,85,88,90,91,93,96,98,99,100,102,104,105,108,110
%N A074402 Multiplicative closure of Euler's "numeri idonei" (A000926).
%e A074402 22 is a term as A000926(17) = 22; 55 is not a term as 55 = 5*11 and neither 
               55 nor 11 are in A000926; 110 = 5*22 = A000926(5)*A000926(17), therefore 
               110 is a term.
%Y A074402 Sequence in context: A004775 A004744 A072226 this_sequence A094270 A125705 
               A154314
%Y A074402 Adjacent sequences: A074399 A074400 A074401 this_sequence A074403 A074404 
               A074405
%K A074402 nonn
%O A074402 1,2
%A A074402 Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Sep 25 2002