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 A179397 a(n) = 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

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Last modified October 21 03:24 EDT 2019. Contains 328291 sequences. (Running on oeis4.)