This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A003941 #19 Jun 23 2025 02:46:19
%S A003941 24815256521932800,76457792934119864313446400,
%T A003941 1211875293642881119668928512000000,
%U A003941 133004733151172695312500000000000000000,14798669658041409826117343924395087366717440000,46025883638628966977843321053405598530493271244800
%N A003941 Order of simple Chevalley group B_5(q), q = prime power.
%D A003941 J. H. Conway, R. T. Curtis, S. P. Norton, R. A. Parker and R. A. Wilson, ATLAS of Finite Groups. Oxford Univ. Press, 1985 [for best online version see https://oeis.org/wiki/Welcome#Links_to_Other_Sites], p. xvi.
%D A003941 H. S. M. Coxeter and W. O. J. Moser, Generators and Relations for Discrete Groups, 4th ed., Springer-Verlag, NY, reprinted 1984, p. 131.
%H A003941 <a href="/index/Gre#groups">Index entries for sequences related to groups</a>.
%F A003941 a(n) = b(A000961(n + 1), 5) where b(q,n) is defined in A003927. - _Sean A. Irvine_, Sep 22 2015
%t A003941 b[q_, n_] := q^(n^2) * Product[q^(2*k) - 1, {k, 1, n}] / GCD[2, q-1]; Table[b[q, 5], {q, Select[Range[10], PrimePowerQ]}] (* _Amiram Eldar_, Jun 23 2025 *)
%Y A003941 Cf. A000961, A003927, A003938, A003939, A003940, A003942.
%K A003941 nonn,easy
%O A003941 1,1
%A A003941 _N. J. A. Sloane_
%E A003941 a(5)-a(6) from _Sean A. Irvine_, Sep 22 2015