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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A022518 Describe previous term from the right (method B - initial term is 7). 0
7, 71, 1171, 117112, 21127112, 211271211221, 112212211171211221, 1122122111711322112212, 21112212223112711322112212, 21112212223112712112312311221321 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

COMMENTS

Method B = 'digit'-indication followed by 'frequency'.

EXAMPLE

E.g. the term after 1171 is obtained by saying "1 once, 7 once, 1 twice", which gives 117112.

CROSSREFS

Cf. A022481, A022488, A022514-A022520.

Sequence in context: A052390 A002119 A146752 * A113053 A022503 A063861

Adjacent sequences:  A022515 A022516 A022517 * A022519 A022520 A022521

KEYWORD

nonn,base,easy,nice

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

EXTENSIONS

More terms from Erich Friedman (erich.friedman(AT)stetson.edu); corrected from 8th term by Patrick De Geest (pdg(AT)worldofnumbers.com), Jun 15 1999.

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 17 19:13 EST 2012. Contains 206085 sequences.