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 A381220 #8 Feb 18 2025 10:22:00 %S A381220 6,3,7,7,6,11,8,8,1,15,12,9,13,10,19,7,18,11,18,5,22,12,21,3,20,11,35, %T A381220 5,16,18,18,23,17,20,26,17,3,42,4,7,42,22,25,1,34,9,8,47,6,55,8,49,7, %U A381220 8,6,42,14,32,19,6,51,2,50,11,27,42,25,46,54,21,22,45,4,16,53,4,73,10,25,39,9,70,11,46,33,49,27,11,20,17 %N A381220 First differences of A381116. %H A381220 N. J. A. Sloane, <a href="/A381220/b381220.txt">Table of n, a(n) for n = 1..335</a> %Y A381220 Cf. A381019, A381116, A381221. %K A381220 nonn %O A381220 1,1 %A A381220 _N. J. A. Sloane_, Feb 18 2025