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 A194964 #19 Mar 17 2025 22:14:56
%S A194964 1,1,2,2,3,3,4,4,5,5,5,6,6,7,7,8,8,9,9,9,10,10,11,11,12,12,13,13,13,
%T A194964 14,14,15,15,16,16,17,17,17,18,18,19,19,20,20,21,21,22,22,22,23,23,24,
%U A194964 24,25,25,26,26,26,27,27,28,28,29,29,30,30,30,31,31,32,32,33,33
%N A194964 a(n) = 1 + floor(n/sqrt(5)).
%H A194964 Vincenzo Librandi, <a href="/A194964/b194964.txt">Table of n, a(n) for n = 1..10000</a>
%t A194964 p[n_] := 1 + Floor[n/Sqrt[5]]
%t A194964 Table[p[n], {n, 1, 90}] (* A194964 *)
%o A194964 (Magma) [1+Floor(n/Sqrt(5)): n in [1..80] ]; // _Vincenzo Librandi_, Sep 10 2011
%o A194964 (PARI) a(n)=sqrtint(n^2\5)+1 \\ _Charles R Greathouse IV_, Sep 02 2015
%Y A194964 Cf. A194983, A194984, A194985.
%K A194964 nonn,easy
%O A194964 1,3
%A A194964 _Clark Kimberling_, Sep 07 2011