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 A276704 #7 Sep 20 2016 13:35:26 %S A276704 3,5,6,21,45,77,117,165,221,285,357,437,525,621,725,837,957,1085,1221, %T A276704 1365,1517,1677,1845,2021,2205,2397,2597,2805,3021,3245,3477,3717, %U A276704 3965,4221,4485,4757,5037,5325,5621,5925,6237,6557,6885,7221,7565,7917,8277 %N A276704 Records in A249859. %C A276704 The indices of the records seem to be 4 and the odd integers. %F A276704 Conjectures: (Start) %F A276704 a(n) = 4*n^2-12*n+5 for n>3. %F A276704 a(n) = 3*a(n-1)-3*a(n-2)+a(n-3) for n>6. %F A276704 G.f.: x*(3-4*x+15*x^3-5*x^4-x^5) / (1-x)^3. %F A276704 (End) %Y A276704 Cf. A249859, A276705. %K A276704 nonn %O A276704 1,1 %A A276704 _Colin Barker_, Sep 15 2016