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7^n mod 10000.
1

%I #7 Sep 07 2012 01:53:48

%S 7,49,343,2401,6807,7649,3543,4801,3607,5249,6743,7201,407,2849,9943,

%T 9601,7207,449,3143,2001,4007,8049,6343,4401,807,5649,9543,6801,7607,

%U 3249,2743,9201,4407,849,5943,1601,1207,8449,9143,4001,8007,6049,2343,6401,4807,3649,5543,8801,1607,1249,8743

%N 7^n mod 10000.

%C Period = 100.

%H V. Raman, <a href="/A216130/b216130.txt">Table of n, a(n) for n = 1..100</a>

%o (PARI) for(i=1, 100, print(7^i%10000" "))

%Y Cf. A001903, A014390.

%K nonn,easy

%O 1,1

%A _V. Raman_, Sep 01 2012