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 A003807 Order of simple Chevalley group A_2(q), q = prime power. 2
 168, 5616, 20160, 372000, 1876896, 16482816, 42456960, 212427600, 270178272, 1425715200, 6950204928, 5644682640, 78156525216, 50778000000, 282027786768, 499631102880, 283991644800, 1098404364288 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 REFERENCES J. H. Conway, R. T. Curtis, S. P. Norton, R. A. Parker and R. A. Wilson, ATLAS of Finite Groups. Oxford Univ. Press, 1985, p. xvi. H. S. M. Coxeter and W. O. J. Moser, Generators and Relations for Discrete Groups, 4th ed., Springer-Verlag, NY, reprinted 1984, p. 131. LINKS FORMULA a(n) = a(A000961(n+1),2) where a(q,n) is defined in A003793. - Sean A. Irvine, Sep 18 2015 MATHEMATICA f[m_, n_] := Block[{g, x, y}, g[x_, y_] := x^(y (y + 1)/2) Product[x^k - 1, {k, 2, y + 1}]; g[m, n]/GCD[n + 1, m - 1]]; f[#, 2] & /@ Select[Range[2, 36], PrimePowerQ] (* Michael De Vlieger, Sep 18 2015 *) CROSSREFS Cf. A000961. Sequence in context: A231995 A223243 A282614 * A011785 A227433 A003800 Adjacent sequences:  A003804 A003805 A003806 * A003808 A003809 A003810 KEYWORD nonn,easy AUTHOR STATUS approved

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Last modified January 25 04:21 EST 2022. Contains 350565 sequences. (Running on oeis4.)