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 A120244 #14 Dec 19 2024 11:46:19 %S A120244 1,2,3,3,4,5,4,5,6,7,4,5,6,7,8,5,6,7,8,9,10,6,7,8,9,10,11,12,5,6,7,8, %T A120244 9,10,11,12,6,7,8,9,10,11,12,13,14,7,8,9,10,11,12,13,14,15,16,8,9,10, %U A120244 11,12,13,14,15,16,17,18,5,6,7,8,9,10,11,12,13,14,15,16,6,7,8,9,10,11,12 %N A120244 a(1) = 1. a(m(m+1)/2 + k) = a(m) + k, 1 <= k <= m+1, m >= 1. %H A120244 Kevin Ryde, <a href="/A120244/b120244.txt">Table of n, a(n) for n = 1..10011</a> %H A120244 Kevin Ryde, <a href="/A120244/a120244.gp.txt">PARI/GP Code</a> %o A120244 (PARI) \\ See links. %Y A120244 Cf. A120245, A120246. %K A120244 easy,nonn %O A120244 1,2 %A A120244 _Leroy Quet_, Jun 12 2006 %E A120244 Extended by _Ray Chandler_, Jun 19 2006