Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A116055
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A116055 Triangular numbers whose representation is made of nontrivial runs of identical digits. +0
1
55, 66, 666, 2211, 222111, 339900, 1188111, 22221111, 88000011, 111221155, 553330011, 2200066611, 2222211111, 2233558866, 55666666611, 77771144466, 222222111111, 880022001111, 888000000111, 1111226666655, 5533355001111 (list; graph; listen)
OFFSET

1,1
COMMENT

A run of length 1 is trivial.

EXAMPLE

T(14914) = 111221155.

CROSSREFS

Cf. A033023.

Sequence in context: A043179 A043959 A004434 this_sequence A068898 A068899 A053719

Adjacent sequences: A116052 A116053 A116054 this_sequence A116056 A116057 A116058

KEYWORD

nonn,base

AUTHOR

Giovanni Resta (g.resta(AT)iit.cnr.it), Feb 13 2006

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 18 20:14 EST 2008. Contains 147244 sequences.

AT&T Labs Research

Legal Notice
© 2007 AT&T Knowledge Ventures. All Rights Reserved.