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

 

Logo

Please make a donation to keep the OEIS running. We are now in our 55th year. In the past year we added 12000 new sequences and reached 8000 citations (which often say "discovered thanks to the OEIS"). We need to raise money to hire someone to manage submissions, which would reduce the load on our editors and speed up editing.
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A105338 a(n) = n*(n+1)/2 mod 512. 0
0, 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66, 78, 91, 105, 120, 136, 153, 171, 190, 210, 231, 253, 276, 300, 325, 351, 378, 406, 435, 465, 496, 16, 49, 83, 118, 154, 191, 229, 268, 308, 349, 391, 434, 478, 11, 57, 104, 152, 201, 251, 302, 354, 407, 461, 4, 60, 117, 175, 234 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..59.

MATHEMATICA

Mod[#, 512]&/@Accumulate[Range[0, 60]] (* Harvey P. Dale, Dec 01 2018 *)

CROSSREFS

See A105198 for further information.

Sequence in context: A105336 A130910 A105337 * A179865 A105339 A089594

Adjacent sequences:  A105335 A105336 A105337 * A105339 A105340 A105341

KEYWORD

nonn

AUTHOR

Oscar Takeshita, May 01 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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 15 03:48 EST 2019. Contains 329990 sequences. (Running on oeis4.)