OFFSET
1,2
LINKS
G. C. Greubel, Table of n, a(n) for n = 1..75
MATHEMATICA
f[n_] := Sum[i^Prime@i, {i, n}]; Array[f, 12] (* Robert G. Wilson v, Feb 12 2008 *)
Accumulate[Table[n^Prime[n], {n, 15}]] (* Harvey P. Dale, Nov 30 2023 *)
PROG
(PARI) a(n) = sum(k=1, n, k^prime(k)); \\ Michel Marcus, Oct 15 2016
CROSSREFS
KEYWORD
nonn
AUTHOR
Ctibor O. Zizka, Feb 07 2008
EXTENSIONS
Edited and extended by Robert G. Wilson v, Feb 12 2008
STATUS
approved