login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A084260 Triangular numbers that set a new record for number of triangular divisors. 5
1, 3, 6, 36, 105, 120, 210, 630, 5460, 25200, 73920, 97020, 157080, 1185030, 2031120, 2162160, 17907120, 76576500, 236215980, 7534947420, 12249176940, 78091322400, 203522319000, 666365279580, 2427046221600, 3638780505360, 12112252031880 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

2*a(n) is oblong numbers that set a new record for number of oblong divisors. - Chandler

Corresponding record values for number of divisors are in A141283.

LINKS

Table of n, a(n) for n=1..27.

CROSSREFS

Cf. A076982, A076983.

Sequence in context: A119198 A119196 A119184 * A076983 A068084 A003674

Adjacent sequences:  A084257 A084258 A084259 * A084261 A084262 A084263

KEYWORD

nonn

AUTHOR

Jason Earls, Jun 21 2003

EXTENSIONS

Extended by Ray Chandler, Jun 21 2008

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 29 23:58 EDT 2021. Contains 346346 sequences. (Running on oeis4.)