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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A118279 Conjectured number of numbers that are not the sum of three n-gonal numbers, or -1 if infinite. 10
0, -1, 210, 638, 1348, -1, 5282, 7687, 12453, -1, 24813, -1, 45338, -1, 63702, 84764, 109613, -1, 162687, 155879, 224244, -1, 303049, -1, 353690, -1, 522262, 541796, 651844, -1, 817053 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,3

COMMENTS

See A118278 for the conjectured largest number that is not the sum of three n-gonal numbers.

LINKS

Table of n, a(n) for n=3..33.

CROSSREFS

Cf. A118278-A118285.

Sequence in context: A046402 A147571 A121479 * A163263 A009127 A158559

Adjacent sequences:  A118276 A118277 A118278 * A118280 A118281 A118282

KEYWORD

sign

AUTHOR

T. D. Noe, Apr 21 2006

EXTENSIONS

a(22)-a(33) from Donovan Johnson, Apr 17 2010

STATUS

approved

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 June 18 17:08 EDT 2013. Contains 226355 sequences.