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 A091776 #7 Jan 03 2024 07:05:59
%S A091776 1,1,1,2,30,6678144,14783742920460482277828601638764478251520
%N A091776 a(1)= 1, a(n+1) = a(n)*(a(n)+1)*(a(n)+2)*...*(a(n)+n-1)/n.
%C A091776 The next term, a(8), has 281 digits. - _T. D. Noe_, Oct 25 2004
%e A091776 a(2)=1/1=1, a(3)=1*2/2=1, a(4)=1*2*3/3=2, a(5)=2*3*4*5/4=30.
%t A091776 a[1]=1; a[n_] := Times@@Range[a[n-1], a[n-1]+n-2]/(n-1); Table[a[i], {i, 7}]
%Y A091776 Cf. A091777.
%K A091776 nonn
%O A091776 1,4
%A A091776 _Amarnath Murthy_, Feb 16 2004
%E A091776 Corrected and extended by _T. D. Noe_, Oct 25 2004