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 A138427 a(n) = (prime(n)^5 - prime(n))/6. 3
 5, 40, 520, 2800, 26840, 61880, 236640, 412680, 1072720, 3418520, 4771520, 11557320, 19309360, 24501400, 38224160, 69699240, 119154040, 140766040, 225020840, 300704880, 345511920, 512842720, 656506760, 930676560, 1431223360 (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) = A138404(n)/6. - R. J. Mathar, Oct 15 2017 MATHEMATICA a = {}; Do[p = Prime[n]; AppendTo[a, (p^5 - p)/6], {n, 1, 50}]; a (#^5-#)/6&/@Prime[Range[40]] (* Harvey P. Dale, Dec 17 2013 *) PROG (Magma) [(NthPrime((n))^5 - NthPrime((n)))/6: n in [1..30]]; // Vincenzo Librandi, Jun 18 2011 (PARI) forprime(p=2, 1e3, print1((p^5-p)/6", ")) \\ Charles R Greathouse IV, Jul 15 2011 CROSSREFS Sequence in context: A145166 A113079 A211046 * A277405 A280572 A217904 Adjacent sequences: A138424 A138425 A138426 * A138428 A138429 A138430 KEYWORD nonn,easy AUTHOR Artur Jasinski, Mar 19 2008 STATUS approved

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Last modified June 17 13:47 EDT 2024. Contains 373445 sequences. (Running on oeis4.)