Group GAP4(21,2)

Name: C21
Maximal quotients:GAP4(3,1) GAP4(7,1)
Real polynomial:
x^21-21*x^19+189*x^17-952*x^15-x^14+2940*x^13+14*x^12-5733*x^11-77*x^10+7007\
*x^9+210*x^8-5147*x^7-294*x^6+2072*x^5+196*x^4-371*x^3-49*x^2+14*x+1
Common denominator of the automorphisms:
1

Database of Galois polynomials by Bill Allombert and Igor Schein.
Last Modified: Thu, 19 Dec 2013 12:12:28 +0100
Copyleft © 2002-2008 the PARI group.