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!)
A280774 Numbers k such that gcd(A280864(k), A280864(k+1)) = 1. 5
1, 3, 6, 10, 13, 23, 27, 30, 34, 38, 48, 54, 62, 65, 69, 86, 90, 94, 103, 120, 127, 131, 135, 139, 144, 148, 161, 165, 185, 197, 211, 255, 258, 262, 275, 286, 290, 300, 311, 319, 330, 334, 350, 354, 358, 367, 375, 379, 399, 414, 420, 427, 443, 447, 453, 457, 465, 486, 500, 504, 530, 534, 549, 555, 559 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
CROSSREFS
Cf. A280864.
First differences give A283832.
Sequence in context: A027428 A136850 A079248 * A083505 A099588 A099531
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jan 19 2017
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 March 28 14:38 EDT 2024. Contains 371254 sequences. (Running on oeis4.)