Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A129677
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A129677 Permutation inverse of A129676. +0
4
2, 6, 1, 4, 3, 5, 8, 12, 7, 9, 11, 10, 14, 20, 13, 16, 15, 17, 19, 18, 22, 24, 21, 23, 26, 30, 25, 28, 27, 29, 32, 36, 31, 33, 35, 34, 38, 40, 37, 39, 42, 48, 41, 44, 43, 45, 47, 46, 50, 54, 49, 52, 51, 53, 56, 60, 55, 57, 59, 58, 62, 68, 61, 64, 63, 65, 67, 66, 70, 72, 69, 71 (list; graph; listen)
OFFSET

1,1

COMMENT

The inversion maintains the cyclic characteristics described in A129676.

LINKS

Ferenc Adorjan, Table of n, a(n) for n = 1..10000

PROGRAM

(PARI) {pinverse(v)= /* Permutation inverse of a positive sequence */

local(n, m, x); n=matsize(v)[2]; x=vector(n);

for(i=1, n, if(v[i]<=n, x[v[i]]=i)); return(x)}

a=pinverse(A129676)

CROSSREFS

Inverse of A129676, Cf. A128754, A128755, A129681 and A000069.

Sequence in context: A124320 A156146 A154584 this_sequence A077761 A076039 A019576

Adjacent sequences: A129674 A129675 A129676 this_sequence A129678 A129679 A129680

KEYWORD

nonn

AUTHOR

Ferenc Adorjan (fadorjan(AT)freemail.hu or ferencadorjan(AT)gmail.com), May 01 2007

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 November 30 13:13 EST 2009. Contains 167758 sequences.


AT&T Labs Research