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 A005620 M0967 #27 Jul 08 2025 16:32:05 %S A005620 1,2,4,5,7,17,25,40,63,99,156,249,397,538,1019,1637,2434,3989,6847, %T A005620 10634,17845,28827,46584,75299,121741,196862,318375,514947,832952, %U A005620 1347429,2179785,3526456,5705275,9230503,14934216 %N A005620 Spiral sieve using Fibonacci numbers. %D A005620 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). %H A005620 Sean A. Irvine, <a href="/A005620/b005620.txt">Table of n, a(n) for n = 1..500</a> %H A005620 H. W. Gould, <a href="https://web.archive.org/web/2024*/https://www.fq.math.ca/Scanned/12-4/gould.pdf">Some sequences generated by spiral sieving methods</a>, Fib. Quart., 12 (1974), 393-397. %H A005620 <a href="/index/Si#sieve">Index entries for sequences generated by sieves</a> %K A005620 nonn %O A005620 1,2 %A A005620 _N. J. A. Sloane_ %E A005620 More terms from Chris Deugau (deugaucj(AT)uvic.ca), Dec 24 2005 %E A005620 Corrected by _T. D. Noe_, Oct 25 2006