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 A135174 a(n) = 5^prime(n) - 3^prime(n) + 2^prime(n). 1
 20, 106, 2914, 76066, 48653026, 1219116994, 762810444034, 19072324590946, 11920834820287906, 186264446293255209154, 4656612255406143777826, 72759575691550490581159234, 45474735052173417717604422274, 1136868376887903338795354772706, 710542735733511371652904252645666 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Vincenzo Librandi, Table of n, a(n) for n = 1..200 FORMULA a(n)= 5^A000040(n) - 3^A000040(n) + 2^A000040(n). EXAMPLE a(4)=76066 because the 4th prime number is 7, 5^7=78125, 3^7=2187, 2^7=128 and 78125-2187+128=76066. MATHEMATICA Table[5^p-3^p+2^p, {p, Prime[Range[20]]}] (* Harvey P. Dale, Dec 12 2013 *) PROG (Magma) [5^p-3^p+2^p: p in PrimesUpTo(100)]; // Vincenzo Librandi, Dec 14 2010 CROSSREFS Cf. A000040. Cf. 2^p: A034785; 3^p: A057901; 5^p: A057902. Sequence in context: A248087 A209547 A278642 * A173963 A202957 A232586 Adjacent sequences: A135171 A135172 A135173 * A135175 A135176 A135177 KEYWORD nonn,easy AUTHOR Omar E. Pol, Nov 25 2007 EXTENSIONS More terms from Vincenzo Librandi, Dec 14 2010 STATUS approved

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Last modified September 19 13:45 EDT 2024. Contains 376012 sequences. (Running on oeis4.)