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%I #48 Mar 26 2017 19:21:58
%S 42,73,52,101,70,149,100,229,150,379,243,159,108,251,164,421,267,174,
%T 449,286,823,508,1609,968,3461,2040,8111,4689,2745,1631,981,600,1987,
%U 1189,723,448,1423,861,530,1697,1020,3643,2146,8623,4978,22193,12602,62791
%N Rocket Sequence 42: a(0) = 42, a(n) = A073846(a(n-1)).
%C This sequence has been checked up to a(108) = 106838266736 without reaching 42. It seems to be slowly climbing in value in both the negative and positive directions. Its period is either extremely large or more probably infinite.
%H Chayim Lowen, <a href="/A261621/b261621.txt">Table of n, a(n) for n = 0..54</a>
%F a(n+1) = A073846(a(n)).
%F a(n-1) = A073898(a(n)).
%e a(1) = A073846(a(0)) = A073846(42) = 73.
%Y Cf. A073846, A073898, A261314, A262149.
%K nonn
%O 0,1
%A _Chayim Lowen_, Sep 09 2015
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