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 A171165 #2 Mar 30 2012 17:34:03 %S A171165 0,2,4,5,6,10,14,15,16,18,20,23,26,33,40,41,42,44,46,49,52,56,60,65, %T A171165 70,80,90,91,92,94,96,99,102,106,110,115,120,126,132,139,146,159,172, %U A171165 173,174,176,178,181,184,188,192,197,202,208,214 %N A171165 A polyspiral path: a(n) represents the n-th vertex of a lattice path with an infinite number of finite square spirals. %C A171165 Also, partial sums of the sequence formed by 0 together the numbers of A171173 repeated. %C A171165 For another version see A171166. %Y A171165 Cf. A171166, A171173, A171174, A171175, A171176, A171177, A171178. %K A171165 easy,nonn %O A171165 0,2 %A A171165 _Omar E. Pol_, Mar 14 2010