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 A116955 #17 Feb 13 2017 11:34:23
%S A116955 1,10,14,30,66,130,230,374,570,826,1150,1550,2034,2610,3286,4070,4970,
%T A116955 5994,7150,8446,9890,11490,13254,15190,17306,19610,22110,24814,27730,
%U A116955 30866,34230,37830,41674,45770,50126,54750,59650,64834,70310,76086,82170,88570
%N A116955 a(n+1) = a(n) + (if a(n) is odd then (next odd square) else (next even square)), a(0) = 1.
%H A116955 <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (4,-6,4,-1).
%F A116955 a(n+1) = A002492(n) + 10.
%F A116955 a(n) = 2*(15+n-3*n^2+2*n^3)/3 for n>0. G.f.: -(9*x^4-30*x^3+20*x^2-6*x-1) / (x-1)^4. - _Colin Barker_, Jul 18 2013
%p A116955 A116955:=n->2*(15+n-3*n^2+2*n^3)/3: 1,seq(A116955(n), n=1..60); # _Wesley Ivan Hurt_, Feb 12 2017
%t A116955 LinearRecurrence[{4,-6,4,-1},{1,10,14,30,66},50] (* _Harvey P. Dale_, Aug 21 2016 *)
%Y A116955 Cf. A002492.
%K A116955 nonn,easy
%O A116955 0,2
%A A116955 _Reinhard Zumkeller_, Mar 15 2006
%E A116955 More terms from _Colin Barker_, Jul 18 2013