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!)
A205711 Positions of multiples of 9 in A204890 (differences of primes). 1
7, 31, 37, 41, 51, 63, 69, 75, 82, 92, 96, 101, 112, 123, 129, 133, 140, 150, 159, 164, 178, 187, 198, 202, 214, 224, 228, 232, 236, 241, 246, 260, 269, 273, 280, 290, 294, 298, 301, 305, 310, 315, 323, 331, 336, 344, 358, 367, 371, 375, 386, 390 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
For a guide to related sequences, see A205558.
LINKS
EXAMPLE
In A204890=(1,3,2,5,4,2,9,8,6,4,11,10,8,...), multiples of 9 are in positions 7,31,37,... See the example at A205712.
MATHEMATICA
(See the program at A205712.)
With[{prs=Prime[Range[30]]}, Flatten[Position[Flatten[Table[prs[[n]]- Take[ prs, n-1], {n, 2, Length[prs]}]], _?(Divisible[#, 9]&)]]] (* Harvey P. Dale, Dec 01 2013 *)
CROSSREFS
Sequence in context: A184121 A167768 A103630 * A040064 A241101 A238664
KEYWORD
nonn
AUTHOR
Clark Kimberling, Jan 31 2012
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 February 22 05:23 EST 2024. Contains 370239 sequences. (Running on oeis4.)