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A259867 Exponent of 2 modulo the prime A056807(n). 1
5, 1500, 234375, 300000000, 7500000000000000000000000000, 750000000000000000000000000000000000, 1500000000000000000000000000000000000000000000000000000000000000000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..7.

S. W. Golomb, Properties of the sequence 3.2^n+1, Math. Comp., 30 (1976), 657-663.

S. W. Golomb, Properties of the sequence 3.2^n+1, Math. Comp., 30 (1976), 657-663. [Annotated scanned copy]

MAPLE

A259867 := proc(n)

    p := 3*10^A056807(n)+1 ;

    numtheory[order](2, p) ;

end proc: # R. J. Mathar, Jul 15 2015

CROSSREFS

Cf. A056807.

Sequence in context: A317070 A316951 A317731 * A169620 A181992 A145694

Adjacent sequences:  A259864 A259865 A259866 * A259868 A259869 A259870

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jul 08 2015

STATUS

approved

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Last modified July 20 22:20 EDT 2019. Contains 325189 sequences. (Running on oeis4.)