A036159 a(n) = 2^n mod 211.

1, 2, 4, 8, 16, 32, 64, 128, 45, 90, 180, 149, 87, 174, 137, 63, 126, 41, 82, 164, 117, 23, 46, 92, 184, 157, 103, 206, 201, 191, 171, 131, 51, 102, 204, 197, 183, 155, 99, 198, 185, 159, 107, 3, 6, 12, 24, 48, 96

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn
• easy

References

• I. M. Vinogradov, Elements of Number Theory, pp. 220 ff.

Links

• Muniru A Asiru, Table of n, a(n) for n = 0..1000

Programs

GAP

a:=List([0..70],n->PowerMod(2,n,211));; Print(a); # Muniru A Asiru, Jan 26 2019

Maple

[ seq(primroot(ithprime(i))^j mod ithprime(i),j=0..100) ];

Mathematica

PowerMod[2,Range[0,50],211] (* Harvey P. Dale, Apr 18 2016 *)

PARI

a(n)=lift(Mod(2,211)^n) \\ Charles R Greathouse IV, Mar 22 2016

Formula

a(n) = a(n-210). - Muniru A Asiru, Jan 27 2019