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!)
A076272 Largest prime factor of A076271(n): A006530(A076271(n)). 6
1, 2, 2, 3, 3, 3, 5, 5, 5, 5, 7, 7, 7, 7, 7, 7, 11, 11, 11, 11, 11, 11, 13, 13, 13, 13, 13, 13, 17, 17, 17, 17, 17, 17, 19, 19, 19, 19, 19, 19, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 29, 29, 29, 29, 29, 29, 29, 29, 31, 31, 31, 31, 31, 31, 31, 31, 37, 37, 37, 37, 37, 37, 37, 37 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
FORMULA
a(n) = A076271(n+1) - A076271(n) for all n;
a(A076273(k)+j) = A008578(k) for k>0 and 0 <= j < A075527(k-1).
MATHEMATICA
Differences[NestList[#+FactorInteger[#][[-1, 1]]&, 1, 100]] (* Paolo Xausa, Dec 09 2023 *)
CROSSREFS
See A180101 for a variant.
Sequence in context: A063905 A130312 A295629 * A180101 A108035 A202503
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Oct 04 2002
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 26 11:46 EST 2024. Contains 370352 sequences. (Running on oeis4.)