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%I #10 Mar 01 2024 07:25:55
%S 1,2,4,5,9,10,11,12,13,23,24,25,26,27,28,29,30,31,32,33,34,35,36,65,
%T 66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,
%U 89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,197,198,199
%N A014486-indices of the plane binary trees AND plane general trees whose left subtree is just a stick: \. thus corresponding to the parenthesizations whose first element (of the top-level list) is an empty parenthesization: ().
%C This sequence is induced by the 'flipped form' of the function 'list': (define (flippedlist x) (cons '() x)) when it acts on symbolless S-expressions encoded by A014486/A063171.
%H Paolo Xausa, <a href="/A072795/b072795.txt">Table of n, a(n) for n = 0..10000</a>
%H <a href="/index/Li#ListFunsOfLisp">Index entries for the sequences induced by list functions of Lisp</a>
%F a(n) = n + A000108(A072643(n)) = A069770(A057548(n)) = A080300(A083937(n))
%t Range[0, Length[#]-1] + CatalanNumber[#] & [Flatten[Array[Table[#, CatalanNumber[#]] &, 7, 0]]] (* _Paolo Xausa_, Mar 01 2024 *)
%Y Gives in A063171 positions of the terms which begin with digits 10...
%Y Column 0 of A072764, row 0 of A072766, column 1 of A085201. Complement: A081291. Cf. A085223.
%K nonn
%O 0,2
%A _Antti Karttunen_ Jun 12 2002
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