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 A014175 #8 Jul 08 2025 02:54:21 %S A014175 1,5,16,41,93,196,394,771,1488,2854,5463,10479,20186,39068,75932, %T A014175 148083,289822,569157,1120940,2212591,4374466,8658470,17159606, %U A014175 34050575,67642478,134489509,267565204,532549215 %N A014175 Apply partial sum operator 4 times to Stern's sequence. %H A014175 <a href="/index/St#Stern">Index entries for sequences related to Stern's sequences</a> %Y A014175 Cf. A005230. %K A014175 nonn %O A014175 0,2 %A A014175 _N. J. A. Sloane_