Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A089866
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A089866 Permutation of natural numbers induced by the gatomorphism gma089866 acting on the parenthesizations/binary trees encoded by A014486/A063171. +0
6
0, 1, 2, 3, 4, 5, 6, 8, 7, 9, 10, 11, 12, 13, 14, 15, 19, 21, 22, 16, 17, 18, 20, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 51, 52, 56, 58, 59, 60, 62, 63, 64, 42, 43, 44, 45, 46, 47, 48, 49, 50, 53, 54, 55, 57, 61, 65, 66, 67, 68, 69 (list; graph; listen)
OFFSET

0,3

COMMENT

This gatomorphism arises when we apply the gatomorphism A074680 to the left subtree, and keep the right subtree intact.

LINKS

A. Karttunen, C-program for computing this sequence

Index entries for signature-permutations induced by Catalan automorphisms

PROGRAM

(Scheme function implementing this automorphism on list-structures:)

(define (gma089866! s) (if (pair? s) (gma074680! (car s))) s)

CROSSREFS

Inverse of A089865. Row 4299 of A089840.

Number of cycles: A089844. Number of fixed-points: A005807 (prepended with two 1's). Max. cycle size: A089410. LCM of cycle sizes: A089845. (In range [A014137(n-1)..A014138(n-1)] of this permutation).

Sequence in context: A130371 A130372 A089865 this_sequence A089854 A131173 A073286

Adjacent sequences: A089863 A089864 A089865 this_sequence A089867 A089868 A089869

KEYWORD

nonn

AUTHOR

Antti Karttunen (Firstname.Surname(AT)iki.fi), Dec 20 2003

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified July 23 17:35 EDT 2008. Contains 142285 sequences.


AT&T Labs Research