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 A016835 #11 Apr 21 2023 05:47:12
%S A016835 2048,362797056,100000000000,4049565169664,64268410079232,
%T A016835 584318301411328,3670344486987776,17714700000000000,70188843638032384,
%U A016835 238572050223552512,717368321110468608,1951354384207722496,4882812500000000000,11384956040305711104,24986644000165537792
%N A016835 a(n) = (4n+2)^11.
%H A016835 <a href="/index/Rec#order_12">Index entries for linear recurrences with constant coefficients</a>, signature (12,-66,220,-495,792,-924,792,-495,220,-66,12,-1).
%F A016835 From _Amiram Eldar_, Apr 21 2023: (Start)
%F A016835 a(n) = A016825(n)^11.
%F A016835 a(n) = 2^11*A016763(n).
%F A016835 Sum_{n>=0} 1/a(n) = 2047*zeta(11)/4194304.
%F A016835 Sum_{n>=0} (-1)^n/a(n) = 50521*Pi^11/30440580710400. (End)
%t A016835 Table[(4*n+2)^11, {n, 0, 20}] (* _Amiram Eldar_, Apr 21 2023 *)
%Y A016835 Cf. A013669, A016763, A016825.
%K A016835 nonn,easy
%O A016835 0,1
%A A016835 _N. J. A. Sloane_