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 A295338 #7 Dec 07 2017 04:04:59 %S A295338 17,37,56,76,95,115,136,154,175,194,214,234,254,273,293,313,332,352, %T A295338 372,392,411,432,450,471,490,511,529,550,569,590,608,629,648,668,688, %U A295338 708,727,747,767,786,806,826,846,865,885 %N A295338 Number of points of the outer discrete Theodorus spiral on sheet S_n, n >= 1. First differences of A072895. %C A295338 The punctured sheets S_n start here with n=1: S_n := rho*exp(i*phi), rho > 0, 2*Pi*(n-1) <= phi < 2*Pi*n. %C A295338 For details and references see A072895. %F A295338 a(n) = b(n+1) - b(n), n >= 1, with b(n) = A072895(n), and a(1) = 17. %Y A295338 Cf. A072895. %K A295338 nonn %O A295338 1,1 %A A295338 _Wolfdieter Lang_, Dec 01 2017