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A138440
a(n) = ((n-th prime)^6-(n-th prime))/2.
3
31, 363, 7810, 58821, 885775, 2413398, 12068776, 23522931, 74017933, 297411646, 443751825, 1282863186, 2375052100, 3160681503, 5389607641, 11082180538, 21090266791, 25760187150, 45229191051, 64050141925, 75667113108
OFFSET
1,1
LINKS
FORMULA
a(n) = A138408(n)/2. - R. J. Mathar, Oct 15 2017
MATHEMATICA
a = {}; Do[p = Prime[n]; AppendTo[a, (p^6 - p)/2], {n, 1, 50}]; a
(#^6-#)/2&/@Prime[Range[30]] (* Harvey P. Dale, Aug 01 2022 *)
PROG
(PARI) forprime(p=2, 1e3, print1((p^6-p)/2", ")) \\ Charles R Greathouse IV, Jul 15 2011
CROSSREFS
Sequence in context: A261759 A156150 A125419 * A307008 A161347 A107941
KEYWORD
nonn,easy
AUTHOR
Artur Jasinski, Mar 19 2008
STATUS
approved