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!)
A275991 a(n) = prime(composite(n)) - prime(n). 0
5, 10, 14, 16, 18, 24, 26, 28, 30, 32, 40, 36, 38, 46, 50, 48, 44, 46, 46, 60, 64, 60, 66, 62, 66, 66, 70, 74, 84, 84, 72, 92, 90, 90, 84, 88, 94, 94, 96, 96, 92, 100, 102, 114, 114, 114, 106, 114, 120, 120, 126, 134, 138, 132, 132, 134, 140, 148, 144, 152, 156, 150 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
FORMULA
a(n) = A000040(A002808(n)) - A000040(n) = A088982(n) - A000040(n).
EXAMPLE
For n=3, prime(composite(3)) = 19, and prime(3) = 5, therefore a(3) = 19 - 5 = 14.
MATHEMATICA
Table[Prime[Composite(n)] - Prime[n], {n, 1, 100}]
CROSSREFS
Cf. A088982.
Sequence in context: A164889 A173553 A226153 * A313452 A023981 A313453
KEYWORD
nonn
AUTHOR
Terry D. Grant, Aug 15 2016
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 April 12 17:42 EDT 2024. Contains 371635 sequences. (Running on oeis4.)