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A138673
Prime(n)^4 mod prime(n-1).
10
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, 50, 16, 38, 109, 2, 117, 16, 131, 16, 88, 40, 93, 127, 85, 16, 45, 16, 63, 16, 40, 58, 33, 16
OFFSET
0,4
COMMENTS
Related sequences type prime(n)^k mod prime(n-1) (k=1,2,3,4)
prime(n) mod prime(n-1) is given in A001223
prime(n)^2 mod prime(n-1) is given in A038702
prime(n)^3 mod prime(n-1) is given in A138672
prime(n)^4 mod prime(n-1) is given in A138673
prime(n)^5 mod prime(n-1) is given in A138674
prime(n)^6 mod prime(n-1) is given in A138675
prime(n)^7 mod prime(n-1) is given in A138676
prime(n)^8 mod prime(n-1) is given in A138677
prime(n)^9 mod prime(n-1) is given in A138678
prime(n)^10 mod prime(n-1) is given in A138679
prime(n)^11 mod prime(n-1) is given in A138680
prime(n)^12 mod prime(n-1) is given in A138681
EXAMPLE
a(1)=1 because 3^4 = 81 = 1 mod 2
a(2)=2 because 5^4 = 625 = 1 mod 3
MATHEMATICA
Table[Mod[Prime[n]^4, Prime[n - 1]], {n, 2, 50}]
KEYWORD
nonn
AUTHOR
Artur Jasinski, Mar 26 2008
STATUS
approved