login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A138429 a(n) = (prime(n)^5 - prime(n))/15. 3
2, 16, 208, 1120, 10736, 24752, 94656, 165072, 429088, 1367408, 1908608, 4622928, 7723744, 9800560, 15289664, 27879696, 47661616, 56306416, 90008336, 120281952, 138204768, 205137088, 262602704, 372270624, 572489344, 700673360, 772849376 (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)/15. - R. J. Mathar, Oct 15 2017

MATHEMATICA

Table[p = Prime[n]; (p^5 - p)/15, {n, 1, 50}]

(#^5-#)/15&/@Prime[Range[30]]  (* Harvey P. Dale, Mar 06 2011 *)

PROG

(MAGMA) [(NthPrime((n))^5 - NthPrime((n)))/15: n in [1..30]]; // Vincenzo Librandi, Jun 18 2011

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

CROSSREFS

Sequence in context: A036081 A303673 A161568 * A087923 A222523 A004121

Adjacent sequences:  A138426 A138427 A138428 * A138430 A138431 A138432

KEYWORD

nonn,easy

AUTHOR

Artur Jasinski, Mar 19 2008

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 12 18:03 EDT 2020. Contains 335666 sequences. (Running on oeis4.)