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A085223 Row 1 of A085201. 7

%I #3 Mar 31 2012 14:02:29

%S 1,2,4,6,9,11,14,16,19,23,25,28,30,33,37,39,42,44,47,51,53,56,60,65,

%T 67,70,72,75,79,81,84,86,89,93,95,98,102,107,109,112,114,117,121,123,

%U 126,128,131,135,137,140,144,149,151,154,156,159,163,165,168,172,177,179

%N Row 1 of A085201.

%C Gives in A014486 the positions of the plane general trees whose rightmost subtree (branching from the root) is just a stick: "/", thus corresponding to the parenthesizations whose last element (of the top-level list) is an empty parenthesization: (), i.e. in A063171 positions of the terms which end with digits ...10

%F a(n) = A085201bi(n, 1) = A057164(A072795(A057164(n))) = A057508(A072795(A057508(n))) = A080300(A085224(n))

%K nonn

%O 0,2

%A _Antti Karttunen_ Jun 23 2003

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Last modified April 17 22:02 EDT 2024. Contains 371767 sequences. (Running on oeis4.)