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%I #12 Feb 20 2022 11:59:11
%S 1,4,2,12,4,32,6,54,7,70,6,72,5,70,4,60,3,48,2,36,1,20
%N a(1) = 1, continue by multiplying by the smallest composite number and then dividing by the smallest prime not used earlier and taking the integer part at every step.
%C For some k, n > k, a(n) = 0 for all n. What is the value of k?
%C All additional terms are zero. - _Franklin T. Adams-Watters_, Sep 07 2006
%e a(2) = 1*4 = 4, a(3) = 4/2 = 2, a(4) = 2*6 = 12, a(5) = 12/3 = 4, a(6) = 4*8 = 32, a(7) = floor(32/5) = 6.
%Y Cf. A077016.
%K fini,full,nonn
%O 1,2
%A _Amarnath Murthy_, Oct 28 2002
%E More terms from _Franklin T. Adams-Watters_, Sep 07 2006
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