OFFSET
0,3
COMMENTS
For background references see A330570.
LINKS
Amiram Eldar, Table of n, a(n) for n = 0..10000
MATHEMATICA
s[1] = 1; s[n_] := s[n] = Module[{e = FactorInteger[n][[;; , 2]]}, If[IntegerQ[Surd[n, 3]], 1/3, 0] + (Times @@ ((e + 1)*(e + 2)/2))/6 + (Times @@ (Floor[e/2] + 1))/2]; a[n_] := Sum[s[k] * s[n+1-k], {k, 1, n}]; Array[a, 100, 0] (* Amiram Eldar, Apr 19 2024 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jan 10 2020
EXTENSIONS
Offset corrected by Amiram Eldar, Apr 19 2024
STATUS
approved