OFFSET
1,2
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
Neville Holmes, Integer Sequence Combinations
EXAMPLE
a(12)=49 because 12=2*2*3, 2+2+3=7 and 7^2 = 49.
MATHEMATICA
sspf[n_]:=Total[Flatten[Table[#[[1]], {#[[2]]}]&/@FactorInteger[ n]]]^2; Join[{0}, Array[sspf, 60, 2]] (* Harvey P. Dale, Sep 24 2012 *)
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
W. Neville Holmes, Aug 28 2002
STATUS
approved