OFFSET
1,1
EXAMPLE
a(10)=53 because 10*prime(10)+a(10) = 10*29 + 53 = 343 = 7^3.
MATHEMATICA
f[n_] := (Ceiling[(n*Prime[n])^(1/3)])^3 - n*Prime[n]; Table[f[n], {n, 100}]
CROSSREFS
KEYWORD
nonn
AUTHOR
Zak Seidov, May 05 2005
EXTENSIONS
Extended by Ray Chandler, May 07 2005
STATUS
approved