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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A119210 Triangular numbers composed of digits {4,6,7}. 2
6, 66, 666, 476776, 764466, 4646676, 464774774646, 667474767766464747666467446, 7666777767444444644744476476, 44774674766666676747766477446 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Next entry must be greater than 10^32.

LINKS

G. Resta, Tridigital Triangular Numbers

CROSSREFS

Cf. A000217, A053957, A119211. See A119033 for a table of cross-references.

Sequence in context: A036523 A112902 A119160 * A119234 A119232 A186675

Adjacent sequences:  A119207 A119208 A119209 * A119211 A119212 A119213

KEYWORD

nonn,base,more

AUTHOR

Giovanni Resta (g.resta(AT)iit.cnr.it), May 10 2006

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 12:15 EST 2012. Contains 205909 sequences.