OFFSET
2,1
LINKS
Eric Weisstein's World of Mathematics, Tau Function.
EXAMPLE
tau(2) = -24 and 2^3 divides 24, so a(2) = 3.
tau(3) = 252 and 3^2 divides 252, so a(3) = 2.
tau(4) = -1472 and 4^3 divides 1472, so a(4) = 3.
MATHEMATICA
f[n_] := Block[{m = 0}, While[Mod[RamanujanTau@n, n^m] == 0, m++]; m - 1]; Array[f, 93, 2] (* Robert G. Wilson v, Dec 23 2017 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Seiichi Manyama, Dec 22 2017
STATUS
approved