The On-Line Encyclopedia of Integer Sequences (OEIS)

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A138167

Numbers containing their length in ternary representation.
(history; published version)

#5 by Russ Cox at Fri Mar 30 18:50:59 EDT 2012

AUTHOR

_Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), _, Mar 03 2008

Discussion

Fri Mar 30

18:50

OEIS Server: https://oeis.org/edit/global/246

#4 by N. J. A. Sloane at Thu Nov 11 07:34:06 EST 2010

LINKS

R. Zumkeller, <a href="/A138167/b138167.txt">Table of n, a(n) for n = 1..10000</a>

KEYWORD

nonn,base,new

#3 by N. J. A. Sloane at Fri Feb 27 03:00:00 EST 2009

LINKS

R. Zumkeller, <a href="http://www.research.att.com/~njas/sequences/b138167.txt">Table of n, a(n) for n = 1..10000</a>

KEYWORD

nonn,base,new

#2 by N. J. A. Sloane at Fri Jan 09 03:00:00 EST 2009

NAME

Numbers containing their length in ternary represetationrepresentation.

KEYWORD

nonn,base,new

#1 by N. J. A. Sloane at Sun Jun 29 03:00:00 EDT 2008

NAME

Numbers containing their length in ternary represetation.

DATA

1, 5, 6, 7, 8, 9, 10, 11, 12, 21, 31, 36, 37, 38, 39, 40, 41, 42, 43, 44, 49, 58, 66, 67, 68, 76, 86, 95, 96, 97, 98, 104, 113, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149

OFFSET

1,2

LINKS

R. Zumkeller, <a href="http://www.research.att.com/~njas/sequences/b138167.txt">Table of n, a(n) for n = 1..10000</a>

EXAMPLE

42 ->'1120', length = 4 ->'11', therefore 42 is a term;

420 ->'120120', length = 6 ->'20', therefore 420 is a term.

CROSSREFS

Cf. A081604, A138166, A138168.

KEYWORD

nonn,base

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Mar 03 2008

STATUS

approved