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 A160699 #14 Sep 08 2022 08:45:45
%S A160699 0,17,154,531,1268,2485,4302,6839,10216,14553,19970,26587,34524,43901,
%T A160699 54838,67455,81872,98209,116586,137123,159940,185157,212894,243271,
%U A160699 276408,312425,351442,393579,438956,487693,539910,595727,655264,718641,785978,857395
%N A160699 A bisection of A063522.
%H A160699 G. C. Greubel, <a href="/A160699/b160699.txt">Table of n, a(n) for n = 0..1000</a>
%H A160699 <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (4, -6, 4, -1).
%F A160699 a(0)=0, a(1)=17, a(2)=154, a(3)=531, a(n) = 4*a(n-1) -6*a(n-2) +4*a(n-3) -a(n-4). - _Harvey P. Dale_, May 07 2011
%t A160699 Table[LegendreP[3,2n],{n,0,50}]
%t A160699 LinearRecurrence[{4,-6,4,-1},{0,17,154,531},151] (* _Harvey P. Dale_, May 07 2011 *)
%o A160699 (PARI) a(n)=pollegendre(3,2*n) \\ _Charles R Greathouse IV_, Mar 19 2017
%o A160699 (Magma) I:=[0,17,154,531]; [n le 4 select I[n] else 4*Self(n-1) - 6*Self(n-2) +4*Self(n-3) -Self(n-4): n in [1..50]]; // _G. C. Greubel_, May 02 2018
%K A160699 nonn,easy
%O A160699 0,2
%A A160699 _N. J. A. Sloane_, Nov 17 2009