A138673 - OEIS

%I #2 Mar 31 2012 10:22:07

%S 1,1,1,4,5,9,16,9,8,16,25,34,16,41,27,24,16,15,55,16,55,19,51,2,62,16,

%T 50,16,38,109,2,117,16,131,16,88,40,93,127,85,16,45,16,63,16,40,58,33,

%U 16

%N Prime(n)^4 mod prime(n-1).

%C Related sequences type prime(n)^k mod prime(n-1) (k=1,2,3,4)

%C prime(n) mod prime(n-1) is given in A001223

%C prime(n)^2 mod prime(n-1) is given in A038702

%C prime(n)^3 mod prime(n-1) is given in A138672

%C prime(n)^4 mod prime(n-1) is given in A138673

%C prime(n)^5 mod prime(n-1) is given in A138674

%C prime(n)^6 mod prime(n-1) is given in A138675

%C prime(n)^7 mod prime(n-1) is given in A138676

%C prime(n)^8 mod prime(n-1) is given in A138677

%C prime(n)^9 mod prime(n-1) is given in A138678

%C prime(n)^10 mod prime(n-1) is given in A138679

%C prime(n)^11 mod prime(n-1) is given in A138680

%C prime(n)^12 mod prime(n-1) is given in A138681

%e a(1)=1 because 3^4 = 81 = 1 mod 2

%e a(2)=2 because 5^4 = 625 = 1 mod 3

%t Table[Mod[Prime[n]^4, Prime[n - 1]], {n, 2, 50}]

%Y Cf. A001223, A038702, A138672, A138673, A138674, A138675, A138676, A138677, A138678, A138679, A138680, A138681.

%K nonn

%O 0,4

%A _Artur Jasinski_, Mar 26 2008