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 A101863 #7 Mar 20 2024 17:50:24 %S A101863 2,13,25,52,89,117,170,208,277,356,410,505,610,680,801,881,1018,1165, %T A101863 1261,1424,1530,1709,1898,2020,2225,2440,2578,2809,2957,3204,3461, %U A101863 3625,3898,4181,4361,4660,4850,5165,5490,5696,6037,6253,6610,6977,7209,7592,7985 %N A101863 Main diagonal of A101858. %H A101863 Paolo Xausa, <a href="/A101863/b101863.txt">Table of n, a(n) for n = 1..10000</a> %F A101863 a(n) = n^2 + floor(n*(1 + sqrt(5))/2)^2. - _Paolo Xausa_, Mar 20 2024 %t A101863 Array[#^2 + Floor[#*GoldenRatio]^2 &, 100] (* _Paolo Xausa_, Mar 20 2024 *) %Y A101863 Cf. A001622, A101858. %K A101863 nonn %O A101863 1,1 %A A101863 _N. J. A. Sloane_, Jan 28 2005