A271380 a(n) = 5^n mod 163.

1, 5, 25, 125, 136, 28, 140, 48, 77, 59, 132, 8, 40, 37, 22, 110, 61, 142, 58, 127, 146, 78, 64, 157, 133, 13, 65, 162, 158, 138, 38, 27, 135, 23, 115, 86, 104, 31, 155, 123, 126, 141, 53, 102, 21, 105, 36, 17, 85, 99, 6, 30, 150, 98, 1, 5, 25, 125, 136, 28

Offset

0,2

Comments

Period 54: repeat [1, 5, 25, 125, 136, 28, 140, 48, 77, 59, 132, 8, 40, 37, 22, 110, 61, 142, 58, 127, 146, 78, 64, 157, 133, 13, 65, 162, 158, 138, 38, 27, 135, 23, 115, 86, 104, 31, 155, 123, 126, 141, 53, 102, 21, 105, 36, 17, 85, 99, 6, 30, 150, 98].

Links

Felix Fröhlich, Table of n, a(n) for n = 0..10000

Formula

a(n) = a(n-54).

Mathematica

PowerMod[5, Range[0, 100], 163]

Prog

(Magma) [Modexp(5, n, 163): n in [0..100]];
(Sage) [power_mod(5, n, 163) for n in (0..60)] # Bruno Berselli, Apr 07 2016
(PARI) a(n) = lift(Mod(5, 163)^n) \\ Felix Fröhlich, Apr 07 2016

Crossrefs

Cf. similar sequences listed in A271378.

Sequence in context: A006339 A032534 A036151 * A036149 A061974 A015950

Adjacent sequences: A271377 A271378 A271379 * A271381 A271382 A271383

Keyword

nonn,easy

Author

Vincenzo Librandi, Apr 07 2016

Status

approved