Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A050759
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A050759 Decimal expansion of (n^2+n)/2 (triangular numbers) contains no pair of consecutive equal digits. +0
2
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 37, 38, 39, 40, 41, 42, 43, 45, 46, 50, 51, 52, 53, 54, 55, 56, 57, 60, 61, 62, 63, 64, 65, 68, 69, 70, 72, 73, 75, 76, 78, 79, 80, 82, 83, 84, 86, 87, 88 (list; graph; listen)
OFFSET

0,3

CROSSREFS

Cf. A043096, A000217, A050760.

Sequence in context: A118766 A136399 A056167 this_sequence A039274 A102487 A102234

Adjacent sequences: A050756 A050757 A050758 this_sequence A050760 A050761 A050762

KEYWORD

nonn,base

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), Sep 15 1999.

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 July 25 07:41 EDT 2008. Contains 142293 sequences.


AT&T Labs Research