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!)
A028947 Difference between P(n) and nearest integer to P(n-1)^2 / P(n-2), where P(i) =i-th prime. 0
0, -1, 1, -4, 2, -3, 2, 1, -6, 4, -3, -2, 2, 2, -1, -5, 4, -3, -2, 4, -2, 2, 2, -5, -2, 2, -2, 2, 10, -12, 2, -4, 8, -9, 4, 0, -2, 2, 0, -4, 8, -9, 2, -2, 10, -1, -9, -2, 2, 2, -4, 8, -4, 0, 0, -4, 4, -2, -2, 8, 4, -11, -2, 2, 10, -9, 4, -8, 2, 2, 2, -2, 0, -2, 2, 2, -4, 4 (list; graph; refs; listen; history; text; internal format)
OFFSET
3,4
LINKS
MATHEMATICA
Join[{0}, Rest[Last[#]-Round[#[[2]]^2/#[[1]]]&/@Partition[Prime[Range[ 80]], 3, 1]]] (* Harvey P. Dale, May 21 2012 *)
CROSSREFS
Sequence in context: A335381 A018845 A333215 * A068152 A278970 A182199
KEYWORD
sign
AUTHOR
Jeremy Newton (joefig(AT)greenville.infi.net)
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 05:02 EDT 2024. Contains 371235 sequences. (Running on oeis4.)