A138444 a(n) = ((n-th prime)^6-(n-th prime^2))/5.

12, 144, 3120, 23520, 354288, 965328, 4827456, 9409104, 29607072, 118964496, 177500544, 513145008, 950020512, 1264272240, 2155842624, 4432871664, 8436106032, 10304074128, 18091675536, 25620055776, 30266844192, 48617489856

Offset

1,1

Links

Table of n, a(n) for n=1..22.

Formula

a(n) = A138409(n)/5. - R. J. Mathar, Oct 15 2017

Mathematica

a = {}; Do[p = Prime[n]; AppendTo[a, (p^6 - p^2)/5], {n, 1, 50}]; a
(#^6-#^2)/5&/@Prime[Range[30]] (* Harvey P. Dale, Oct 18 2013 *)

Prog

(PARI) forprime(p=2, 1e3, print1((p^6-p^2)/5", ")) \\ Charles R Greathouse IV, Jul 15 2011

Crossrefs

Sequence in context: A076728 A123237 A143248 * A137886 A097303 A067219

Adjacent sequences: A138441 A138442 A138443 * A138445 A138446 A138447

Keyword

nonn,easy

Author

Artur Jasinski, Mar 19 2008

Status

approved