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 A108734 #20 Apr 25 2024 09:19:03
%S A108734 1,12,-72,864,-12960,217728,-3919104,73903104,-1441110528,28822210560,
%T A108734 -587973095424,12187078705152,-255928652808192,5433562167312384,
%U A108734 -116433475013836800,2514963060298874880,-54700446561500528640,1196974477698717450240,-26333438509371783905280,582107588101902591590400
%N A108734 Expansion of (1 + 24*x)^(1/2).
%F A108734 a(n) = 2^n*A108735(n). - _Zak Seidov_, Jun 24 2005
%F A108734 D-finite with recurrence: n*a(n) +12*(2*n-3)*a(n-1)=0. - _R. J. Mathar_, Jan 20 2020
%F A108734 From _Amiram Eldar_, May 28 2022: (Start)
%F A108734 Sum_{n>=0} 1/a(n) = (672 - 72*arcsinh(1/(2*sqrt(6)))/5)/625.
%F A108734 Sum_{n>=0} 1/a(n) = (480 - 72*arcsin(1/(2*sqrt(6)))/sqrt(23))/529. (End)
%t A108734 CoefficientList[Series[(1 + 24 x)^(1/2), {x, 0, 20}], x] (* _Vincenzo Librandi_, Jan 21 2020 *)
%Y A108734 Cf. A108735.
%K A108734 sign
%O A108734 0,2
%A A108734 _N. J. A. Sloane_, Jun 22 2005