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!)
A160656 The odd prime numbers together with 0: p - (-1)^p - 1 where p = n-th prime. 1
0, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
FORMULA
a(n) = p - (-1)^p - 1 where p is the n-th prime.
a(n) = p mod n^2, where p is the n-th prime. - Gary Detlefs, Jan 14 2012
MAPLE
seq(ithprime(n) mod n^2, n=1..59) # Gary Detlefs, Jan 14 2012
PROG
(PARI) a(n)=if(n>1, prime(n)) \\ Charles R Greathouse IV, Aug 26 2011
CROSSREFS
Sequence in context: A073579 A006005 A065091 * A176997 A240699 A065380
KEYWORD
nonn,easy,less
AUTHOR
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 09:04 EDT 2024. Contains 371240 sequences. (Running on oeis4.)