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 A332969 #17 Jun 02 2020 12:53:09
%S A332969 1,8,18,16,37,26,34,52,70,90,87,116,127,112,157,212,158,192,252,252,
%T A332969 249,272,349,276,287,478,482,334,407,478,465,488,544,698,562,504,682,
%U A332969 698,738,736,742,880,907,826,944,848,998,1110,976,1106,1217,1112,1060
%N A332969 a(n) = [x^n] (Sum_{j>=0} A002193(1-j) * x^j)^2.
%F A332969 G.f.: (Sum_{j>=0} A002193(1-j) * x^j)^2.
%F A332969 Sum_{k>=0} a(k)/10^k = 2.
%F A332969 a(n) = Sum_{j=0..n} A002193(1-j)*A002193(j-n+1).
%e A332969 a(1) = 8 because the coefficient of x^1 in (1 + 4x + ... )^2 is 8.
%o A332969 (PARI) seq(n)={Vec(Ser(digits(sqrtint(2*100^n)))^2)} \\ _Andrew Howroyd_, Mar 04 2020
%Y A332969 Cf. A002193.
%K A332969 nonn,base,easy
%O A332969 0,2
%A A332969 _Andrew Slattery_, Mar 04 2020