A138457 a(n) = ((n-th prime)^6-(n-th prime)^4)/8.

6, 81, 1875, 14406, 219615, 599781, 3006756, 5864445, 18469506, 74264505, 110822520, 320481531, 593409810, 789743031, 1346791956, 2769558831, 5271052035, 6438316065, 11304778881, 16009359030, 18913228506, 30381063180

Offset

1,1

Links

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

Mathematica

a = {}; Do[p = Prime[n]; AppendTo[a, (p^6 - p^4)/8], {n, 1, 24}]; a

Prog

(PARI) forprime(p=2, 1e3, print1((p^6-p^4)/8", ")) \\ Charles R Greathouse IV, Jul 15 2011

Crossrefs

Sequence in context: A349651 A193265 A317277 * A252821 A371765 A204264

Adjacent sequences: A138454 A138455 A138456 * A138458 A138459 A138460

Keyword

nonn,easy

Author

Artur Jasinski, Mar 22 2008

Status

approved