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 A358296 #3 Dec 05 2022 20:33:17 %S A358296 2,13,28,49,74,105,140,181,226,277,332,393,458,529,604,685,770,861, %T A358296 956,1057,1162,1273,1388,1509,1634,1765,1900,2041,2186,2337,2492,2653, %U A358296 2818,2989,3164,3345,3530,3721,3916,4117,4322,4533,4748,4969,5194,5425,5660,5901,6146,6397,6652,6913,7178,7449,7724,8005,8290,8581,8876,9177 %N A358296 Row 3 of the array in A115009. %C A358296 The second differences are 4,6,4,6,4,6,... %Y A358296 Cf. A115009. %K A358296 nonn %O A358296 1,1 %A A358296 _N. J. A. Sloane_, Dec 05 2022