The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A087360 Indices of triangular numbers in A087359. 1
1, 2, 3, 5, 6, 8, 12, 59, 72, 812, 1523, 47051, 234380, 82528328, 963837743, 8386720250208, 15040477267097648, 562429063569593838374096, 9285393339731985604589835104960, 631311818053863204637859662148296083530450400 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
FORMULA
a(n) = floor(sqrt(2*A087359(n))). - David Wasserman, May 19 2005
CROSSREFS
Cf. A087359.
Sequence in context: A338916 A125559 A331865 * A111501 A094565 A364122
KEYWORD
nonn
AUTHOR
Amarnath Murthy, Sep 08 2003
EXTENSIONS
More terms from David Wasserman, May 19 2005
STATUS
approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 18 20:31 EDT 2024. Contains 373486 sequences. (Running on oeis4.)