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A297967
a(n) = 5^n mod prime(n).
1
1, 1, 0, 2, 1, 12, 10, 4, 11, 20, 25, 10, 39, 36, 41, 13, 36, 58, 52, 1, 17, 26, 19, 64, 13, 5, 94, 14, 25, 36, 40, 74, 117, 81, 6, 123, 24, 155, 134, 117, 20, 42, 69, 36, 185, 111, 121, 16, 206, 159, 42, 220, 47, 123, 130, 61, 57, 83, 6, 79, 270, 14, 91
OFFSET
1,4
LINKS
FORMULA
a(n) = A000351(n) mod A000040(n).
MATHEMATICA
Array[PowerMod[5, #, Prime@#]&, 80]
PROG
(Magma) [Modexp(5, n, NthPrime(n)): n in [1..80]];
CROSSREFS
KEYWORD
nonn
AUTHOR
Vincenzo Librandi, Jan 15 2018
STATUS
approved