login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A064791 "Inverse permutation" to A064537. Limits of the recursion b(i+1)=B_[i](b(i)), where b(0)=n and B_[k](j) = B_[k-1](j) + k, k+1 <= j <= 2k; B_[k](j) = B_[k-1](j) - k, 2k+1 <= j <= 3k; B_[k](j) = B_[k-1](j) otherwise. Set a(n)=0 if b tends to infinity. 3
1, 11, 2, 5, 3, 6, 4, 21, 36, 15, 10, 7, 146, 8, 105, 9, 16, 46, 80, 30, 12, 20, 13, 480, 14, 40, 25, 26, 4340, 17, 215, 18, 31, 19, 90, 55, 261, 35, 22, 61, 23, 65, 24, 41, 115, 71, 330, 27, 45, 28, 365, 29, 136, 50, 51, 86, 32, 3136, 33, 56, 34, 96, 161, 3490, 60, 37, 171, 38, 296 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

The sequence would be the inverse permutation to A064537 if zero never appears.

LINKS

Index entries for sequences that are permutations of the natural numbers

CROSSREFS

Sequence in context: A018800 A089566 A010191 * A074126 A107831 A064928

Adjacent sequences:  A064788 A064789 A064790 * A064792 A064793 A064794

KEYWORD

easy,nonn

AUTHOR

Klaus Strassburger (strass(AT)ddfi.uni-duesseldorf.de), Oct 20 2001

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 16 16:51 EST 2012. Contains 205938 sequences.