login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A127289 Signature-permutation of a Catalan automorphism: composition of A127291 and A057164. 8

%I #5 Mar 31 2012 13:21:13

%S 0,1,3,2,6,8,7,5,4,15,20,14,19,21,18,22,16,11,13,17,12,10,9,39,53,41,

%T 55,59,40,54,38,52,57,37,51,56,58,47,60,49,62,64,48,61,43,29,34,42,28,

%U 33,35,50,63,46,32,36,44,30,25,27,45,31,26,24,23,113,155,118,160,173

%N Signature-permutation of a Catalan automorphism: composition of A127291 and A057164.

%C This is otherwise like A127291, but uses A127285 instead of A127287 as a "picker permutation" for the function "tau", which can be found in the entry A127291. A014486->parenthesization is given in A014486. This permutation contains some exceptionally large cycles, see A127297.

%H A. Karttunen, <a href="/A127289/b127289.txt">Table of n, a(n) for n = 0..2055</a>

%H <a href="/index/Per#IntegerPermutationCatAuto">Index entries for signature-permutations of Catalan automorphisms</a>

%o (Scheme:) (define (A127289 n) (tau (A014486->parenthesization (A014486 n)) *A127285!))

%Y Inverse: A127290. a(n) = A127291(A057164(n)) = A057164(A127299(n)). The number of cycles, maximum cycle sizes and LCM's of all cycle sizes in range [A014137(n-1)..A014138(n-1)] of this permutation are given by A127296, A127297 and A127298.

%K nonn

%O 0,3

%A _Antti Karttunen_, Jan 16 2007

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 14 05:41 EDT 2024. Contains 375146 sequences. (Running on oeis4.)