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 A099056 #10 Jan 12 2019 20:21:12 %S A099056 2,6,11,17,24,30,38,46,53,61,71,77,88,96,104,114,124,132,143,151,161, %T A099056 171,183,189,202,212,220,232,244,250,264,274,285,295,305,315,329,339, %U A099056 349,359,374,380,396,404,414,430,440,448,462,474,485,495,511,517,531 %N A099056 A bisection of A054519. %p A099056 a:=n->sum(ceil(2*n/j), j=1..n): seq(a(n), n=1..55); # _Zerinvary Lajos_, Jan 24 2007 %K A099056 nonn %O A099056 0,1 %A A099056 _N. J. A. Sloane_, Nov 15 2004 %E A099056 More terms from _Joshua Zucker_, May 12 2006