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A027741 Number of primitive polynomials of degree n over GF(5). 11
1, 2, 4, 20, 48, 280, 720, 5580, 14976, 99360, 291200, 2219460, 5184000, 46950120, 139991040, 876960000, 2752708608, 22384531584, 55435726080, 499226178000, 1280348160000, 10957459615200, 34031246515200 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..22.

MAPLE

with(numtheory): phi(5^n-1)/n;

CROSSREFS

Sequence in context: A059206 A294230 A052004 * A137697 A192380 A009336

Adjacent sequences:  A027738 A027739 A027740 * A027742 A027743 A027744

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified October 17 19:36 EDT 2018. Contains 316293 sequences. (Running on oeis4.)