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 A194990 #17 Mar 17 2025 22:15:01 %S A194990 1,1,2,2,2,3,3,3,4,4,4,5,5,5,6,6,7,7,7,8,8,8,9,9,9,10,10,10,11,11,11, %T A194990 12,12,13,13,13,14,14,14,15,15,15,16,16,16,17,17,17,18,18,19,19,19,20, %U A194990 20,20,21,21,21,22,22,22,23,23,23,24,24,25,25,25,26,26,26,27,27 %N A194990 a(n) = 1+ floor(n/sqrt(8)). %H A194990 Vincenzo Librandi, <a href="/A194990/b194990.txt">Table of n, a(n) for n = 1..10000</a> %t A194990 (See A194914.) %o A194990 (Magma) [1+Floor(n/Sqrt(8)): n in [1..80] ]; // _Vincenzo Librandi_, Sep 10 2011 %Y A194990 Cf. A172474, A194914, A286655 (first differences). %K A194990 nonn,easy %O A194990 1,3 %A A194990 _Clark Kimberling_, Sep 08 2011