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%I A122242 #16 Sep 23 2024 14:13:01
%S A122242 42,240,916,3748,14960,62104,248176,969304,3876576,15962544,63772488,
%T A122242 248169896,993554240,4086635408,16350541128,63529835824,254129143040,
%U A122242 1046249323840,4184725760584,16276030608712,65054467548432,267635134298624
%N A122242 a(n) = A014486(A122241(n)).
%C A122242 Question: to which Wolfram's class does this simple program belong, class 3 or class 4, or is such categorization at all applicable here?
%H A122242 Antti Karttunen, Table of n, a(n) for n = 1..1650
%H A122242 Antti Karttunen, Python program for computing this sequence and the associated images.
%H A122242 Antti Karttunen, Terms a(1)-a(768) drawn as binary strings, in Wolframesque fashion.
%H A122242 Antti Karttunen, Terms a(1)-a(256) drawn as binary strings, showing details better.
%H A122242 Antti Karttunen, The central parts of terms a(1) - a(20000) drawn in similar fashion. (Note the "foreshadowing ghost columns" present in the "central skyscraper" attractor that are not present at A122245. Compare also to illustrations in A376412)
%H A122242 Index entries for sequences related to binary expansion of n
%H A122242 Index entries for encodings of plane rooted trees
%H A122242 Index entries for sequences related to parenthesizing
%F A122242 For n >= 1, a(1+n) = 2*a(n) XOR A376402(n), a(4+n) = 16*a(n) XOR A376412(n). - _Antti Karttunen_, Sep 23 2024
%o A122242 (Python) # See the Links section
%Y A122242 Cf. A014486, A057548, A082358, A122237, A122241, A122243 (same sequence in binary).
%Y A122242 Compare to similar Wolframesque plots given in A080070, A122229, A122232, A122235, A122239, A122245.
%Y A122242 Cf. also A376402, A376412.
%K A122242 nonn,base,changed
%O A122242 1,1
%A A122242 _Antti Karttunen_, Sep 14 2006
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