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 A381221 #6 Feb 18 2025 10:25:41 %S A381221 6,9,16,23,29,40,48,56,57,72,84,93,106,116,135,142,160,171,189,194, %T A381221 216,228,249,252,272,283,318,323,339,357,375,398,415,435,461,478,481, %U A381221 523,527,534,576,598,623,624,658,667,675,722,728,783,791,840,847,855,861,903,917,949,968,974,1025,1027,1077,1088,1115,1157 %N A381221 Partial sums of A381116. %H A381221 N. J. A. Sloane, <a href="/A381221/b381221.txt">Table of n, a(n) for n = 1..335</a> %K A381221 nonn %O A381221 1,1 %A A381221 _N. J. A. Sloane_, Feb 18 2025