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 A323218 #13 Feb 17 2021 17:29:46
%S A323218 1,29,85,177,313,501,749,1065,1457,1933,2501,3169,3945,4837,5853,7001,
%T A323218 8289,9725,11317,13073,15001,17109,19405,21897,24593,27501,30629,
%U A323218 33985,37577,41413,45501,49849,54465,59357,64533,70001,75769,81845,88237,94953,102001
%N A323218 a(n) = (4*n^3 + 30*n^2 + 50*n)/3 + 1.
%H A323218 <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (4,-6,4,-1)
%p A323218 a := n -> (4*n^3 + 30*n^2 + 50*n)/3 + 1: seq(a(n), n = 0..40);
%t A323218 Table[(4n^3+30n^2+50n)/3+1,{n,0,40}] (* _Harvey P. Dale_, May 24 2019 *)
%Y A323218 Column 4 of A323222.
%K A323218 nonn,easy
%O A323218 0,2
%A A323218 _Peter Luschny_, Jan 26 2019