This site is supported by donations to The OEIS Foundation.

 Annual Appeal: Please make a donation to keep the OEIS running. In 2018 we replaced the server with a faster one, added 20000 new sequences, and reached 7000 citations (often saying "discovered thanks to the OEIS"). Other ways to donate

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A179397 Prime(n)^2 mod prime(n-2). 1
 1, 1, 1, 1, 3, 10, 2, 5, 18, 6, 7, 36, 36, 14, 3, 11, 5, 39, 36, 64, 27, 21, 30, 55, 36, 36, 36, 36, 106, 98, 100, 64, 7, 5, 64, 144, 100, 100, 144, 64, 144, 144, 36, 36, 196, 178, 45, 36, 36, 100, 64, 144, 15, 144, 144, 64, 64, 100, 36, 144, 10, 31, 36, 36, 11, 83, 256, 144, 36, 100, 196, 196, 144, 100, 100, 196 (list; graph; refs; listen; history; text; internal format)
 OFFSET 3,5 LINKS Harvey P. Dale, Table of n, a(n) for n = 3..1000 EXAMPLE a(1)=5^2 mod(2)=25 mod(2)=1, a(2)=7^2 mod(3)=49 mod(3)=1, a(3)=11^2 mod(5)=121 mod(5)=1, a(4)=13^2 mod(7)=169 mod(7)=1, a(5)=17^2 mod(11)=289 mod(11)=3,... MAPLE A179397 := proc(n) ithprime(n)^2 mod ithprime(n-2); end proc: # R. J. Mathar, Jan 09 2011 MATHEMATICA PowerMod[#[[3]], 2, #[[1]]]&/@Partition[Prime[Range[80]], 3, 1] (* Harvey P. Dale, Oct 21 2018 *) CROSSREFS Cf. A038702. Sequence in context: A165590 A234935 A016450 * A111272 A124692 A091043 Adjacent sequences:  A179394 A179395 A179396 * A179398 A179399 A179400 KEYWORD nonn AUTHOR Umut Uludag, Jan 07 2011 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified December 18 14:23 EST 2018. Contains 318229 sequences. (Running on oeis4.)