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 A064096 #15 Nov 07 2024 09:53:35
%S A064096 1,14,67,190,413,766,1279,1982,2905,4078,5531,7294,9397,11870,14743,
%T A064096 18046,21809,26062,30835,36158,42061,48574,55727,63550,72073,81326,
%U A064096 91339,102142,113765,126238,139591,153854,169057,185230,202403,220606,239869,260222,281695,304318,328121,353134,379387,406910
%N A064096 Fifth diagonal of triangle A064094.
%H A064096 G. C. Greubel, <a href="/A064096/b064096.txt">Table of n, a(n) for n = 0..2500</a>
%H A064096 <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (4,-6,4,-1).
%F A064096 a(n) = 1+3*n+5*n^2+5*n^3. Fourth row polynomial (n=3) of Catalan triangle A009766.
%F A064096 G.f.: (1+2*x)*(1+8*x+x^2)/(1-x)^4.
%F A064096 a(n) = 4*a(n-1) - 6*a(n-2) + 4*a(n-3) - a(n-4). - _Wesley Ivan Hurt_, Nov 17 2022
%F A064096 E.g.f.: (1 + 13*x + 20*x^2 + 5*x^3)*exp(x). - _G. C. Greubel_, Nov 07 2024
%t A064096 CoefficientList[Series[(1 + 2*x)*(1 + 8*x + x^2)/(1 - x)^4, {x, 0, 50}], x] (* _Wesley Ivan Hurt_, Nov 17 2022 *)
%o A064096 (Magma) [(n+1)^3 +2*n^2*(2*n+1): n in [0..50]]; // _G. C. Greubel_, Nov 07 2024
%o A064096 (SageMath)
%o A064096 def A064096(n): return (n+1)^3 +2*n^2*(2*n+1)
%o A064096 [A064096(n) for n in range(51)] # _G. C. Greubel_, Nov 07 2024
%Y A064096 Cf. A001844 (fourth diagonal), A009766, A064094.
%K A064096 nonn,easy
%O A064096 0,2
%A A064096 _Wolfdieter Lang_, Sep 13 2001
%E A064096 More terms added by _G. C. Greubel_, Nov 07 2024