OFFSET
1,2
FORMULA
EXAMPLE
a(1) = (1^3 + 2^3)/3^2 = (1 + 8)/9 = 1.
MATHEMATICA
Table[ p = Prime[n]; Sum[ m^p, {m, 1, p - 1}] / p^2, {n, 2, 12}]
CROSSREFS
KEYWORD
nonn
AUTHOR
Jonathan Sondow, Nov 01 2017
STATUS
approved