A070584 - OEIS

%I #12 Dec 18 2023 17:38:12

%S 0,1,16,40,10,10,25,23,37,1,37,4,31,25,40,31,18,4,16,23,18,18,23,16,4,

%T 18,31,40,25,31,4,37,1,37,23,25,10,10,40,16,1,0,1,16,40,10,10,25,23,

%U 37,1,37,4,31,25,40,31,18,4,16,23,18,18,23,16,4,18,31,40,25,31,4,37,1,37

%N a(n) = n^4 mod 41.

%H <a href="/index/Rec#order_41">Index entries for linear recurrences with constant coefficients</a>, signature (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1).

%t PowerMod[Range[0,80],4,41] (* _Harvey P. Dale_, Nov 01 2011 *)

%o (PARI) a(n)=n^4%41 \\ _Charles R Greathouse IV_, Apr 06 2016

%K nonn,easy

%O 0,3

%A _N. J. A. Sloane_, May 13 2002