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 A184898 #10 Oct 05 2020 06:10:25
%S A184898 1,112,90720,105100800,142542960000,211337613527040,
%T A184898 331831362513530880,542307255307827609600,912855634598629193472000,
%U A184898 1571864775032876891607040000,2755743023914838714304931102720
%N A184898 a(n) = C(2n,n) * (8^n/n!^2) * Product_{k=0..n-1} (8k+1)*(8k+7).
%F A184898 Self-convolution of A184897, where A184897(n) = (8^n/n!^2) * Product_{k=0..n-1} (16k+1)*(16k+7).
%F A184898 a(n) ~ sqrt(2-sqrt(2)) * 2^(11*n - 1) / (Pi^(3/2) * n^(3/2)). - _Vaclav Kotesovec_, Oct 05 2020
%e A184898 G.f.: A(x) = 1 + 112*x + 90720*x^2 + 105100800*x^3 +...
%e A184898 A(x)^(1/2) = 1 + 56*x + 43792*x^2 + 50098048*x^3 +...+ A184897(n)*x^n +...
%o A184898 (PARI) {a(n)=(2*n)!/n!^2*(8^n/n!^2)*prod(k=0,n-1,(8*k+1)*(8*k+7))}
%Y A184898 Cf. A184897; variants: A184423, A008977, A184892, A001421, A184896.
%K A184898 nonn
%O A184898 0,2
%A A184898 _Paul D. Hanna_, Jan 25 2011