# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a122242 Showing 1-1 of 1 %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 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE