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 A028679 #12 Jul 12 2025 08:34:08
%S A028679 1,272,22639104,546341708980224,3811101610741578352558080,
%T A028679 7683152190027081335646892427952783360,
%U A028679 4476375132477699824408564935442752007430598683525120,753722313834315665863920705126825485467891025286555525186004419870720
%N A028679 Galois numbers for p=17; order of group AGL(n,17).
%H A028679 Vincenzo Librandi, <a href="/A028679/b028679.txt">Table of n, a(n) for n = 0..28</a>
%H A028679 <a href="/index/Gre#groups">Index entries for sequences related to groups</a>.
%F A028679 a(n) = 17^n * Product_{k=0..n-1} (17^n - 17^k).
%F A028679 a(n) ~ c * 17^(n^2+n), where c = Product_{k>=1} (1 - 1/17^k) = 0.937716969709... . - _Amiram Eldar_, Jul 12 2025
%t A028679 FoldList[ #1*17^#2 (17^#2-1)&, 1, Range[ 20 ] ]
%t A028679 a[n_] := 17^n * Product[17^n - 17^k, {k, 0, n-1}]; Array[a, 10, 0] (* _Amiram Eldar_, Jul 12 2025 *)
%o A028679 (PARI) a(n) = 17^n * prod(k = 0, n-1, 17^n - 17^k); \\ _Amiram Eldar_, Jul 12 2025
%Y A028679 Cf. A028365, A028665, A028667, A028669, A028673, A028675, A028681, A028685.
%K A028679 nonn
%O A028679 0,2
%A A028679 _Olivier Gérard_