A299204 - OEIS

%I #17 Feb 07 2018 11:57:18

%S 0,0,1,2,2,2,4,5,0,2,9,2,0,0,1,2,3,2,2,12,18,10,22,7,12,22,2,2,5,2,11,

%T 16,15,2,31,2,12,32,3,2,8,2,27,42,27,22,9,9,16,32,32,10,33,18,0,0,30,

%U 0,29,2,38,50,28,20,39,26,48,48,0,2,4,2,5,26,35,12

%N a(n) = A000594(n) mod (n-1).

%H Seiichi Manyama, <a href="/A299204/b299204.txt">Table of n, a(n) for n = 2..10000</a>

%t f[n_] := Mod[RamanujanTau@n, n - 1]; Array[f, 76, 2] (* _Robert G. Wilson v_, Feb 07 2018 *)

%o (PARI) {a(n) = ramanujantau(n)%(n-1)}

%Y Cf. A000594, A273650, A299163, A299172, A299205.

%K nonn

%O 2,4

%A _Seiichi Manyama_, Feb 05 2018