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A138437 a(n) = ((n-th prime)^5-(n-th prime)^3)/12. 3
2, 18, 250, 1372, 13310, 30758, 117912, 205770, 535348, 1707230, 2383280, 5774442, 9648940, 12244078, 19103432, 34837218, 59559910, 70364110, 112485362, 150322620, 172723548, 256380280, 328205738, 465279540, 715535632, 875755850 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..26.

FORMULA

a(n) = A138406(n)/12. - R. J. Mathar, Oct 15 2017

MATHEMATICA

a = {}; Do[p = Prime[n]; AppendTo[a, (p^5 - p^3)/12], {n, 1, 50}]; a

PROG

(PARI) forprime(p=2, 1e3, print1((p^5-p^3)/12", ")) \\ Charles R Greathouse IV, Jul 15 2011

CROSSREFS

Sequence in context: A259270 A168562 A117514 * A265452 A121429 A337775

Adjacent sequences:  A138434 A138435 A138436 * A138438 A138439 A138440

KEYWORD

nonn,easy

AUTHOR

Artur Jasinski, Mar 19 2008

STATUS

approved

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Last modified September 16 14:33 EDT 2021. Contains 347472 sequences. (Running on oeis4.)