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

 

Logo

Annual Appeal: Today, Nov 11 2014, is the 4th anniversary of the launch of the new OEIS web site. 70,000 sequences have been added in these four years, all edited by volunteers. Please make a donation (tax deductible in the US) to help keep the OEIS running.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A048362 a(n) is base of smallest triangle containing exactly n 7's. 0
12, 59, 381, 3684, 8692, 70381, 122292, 3762381, 7453707, 18856074, 124721736, 587838545, 3996943276, 18845571218, 27483805332 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..15.

Eric Weisstein's World of Mathematics, Triangular Number

CROSSREFS

Cf. A036524.

Sequence in context: A167533 A244907 A062477 * A231215 A231340 A099321

Adjacent sequences:  A048359 A048360 A048361 * A048363 A048364 A048365

KEYWORD

nonn,base,more

AUTHOR

Patrick De Geest, Mar 15 1999.

EXTENSIONS

a(13)-a(15) from Lars Blomberg, May 16 2011

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified December 21 17:16 EST 2014. Contains 252324 sequences.