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A050975 Haupt-exponents of 3 modulo integers relatively prime to 3. 3
1, 2, 4, 6, 2, 4, 5, 3, 6, 4, 16, 18, 4, 5, 11, 20, 3, 6, 28, 30, 8, 16, 12, 18, 18, 4, 8, 42, 10, 11, 23, 42, 20, 6, 52, 20, 6, 28, 29, 10, 30, 16, 12, 22, 16, 12, 35, 12, 18, 18, 30, 78, 4, 8, 41, 16, 42, 10, 88, 6, 22, 23, 36, 48, 42, 20, 100, 34, 6, 52, 53, 27, 20, 12 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

R. J. Mathar, Table of n, a(n) for n = 1..1000

Eric Weisstein's World of Mathematics, Multiplicative Order

MAPLE

A001651 := proc(n)

        (3*(2*n-1)-(-1)^n)/4 ;

end proc:

A050975 := proc(n)

        local gcd3 ;

        gcd3 := A001651(n+1);

        numtheory[order](3, gcd3) ;

end proc: # R. J. Mathar, Oct 21 2012

CROSSREFS

Cf. A002326, A002329.

Sequence in context: A056649 A075242 A161489 * A053446 A133903 A278263

Adjacent sequences:  A050972 A050973 A050974 * A050976 A050977 A050978

KEYWORD

nonn

AUTHOR

Eric W. Weisstein

STATUS

approved

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Last modified August 18 18:16 EDT 2017. Contains 290732 sequences.