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 A036067 #9 May 11 2020 01:54:56 %S A036067 0,0,20,1220,321120,13423120,1433424120,4443424120,8433423120, %T A036067 187443422120,28175443523120,2827255433624120,282716454443823120, %U A036067 382726356443923120,19382736256463823120,29382756253483823120 %N A036067 A summarize Fibonacci sequence starting with a(0)=a(1)=0: summarize the previous two terms!. %C A036067 From the 54th term the sequence goes into a cycle of 117 terms. %C A036067 For n > 1, a(n) is of the form 2^(k+2) * 5 * r, where k is a nonnegative integer and r is a positive integer relatively prime to 10. Therefore, for n > 1, a(n) is a Zumkeller number (A083207). - _Ivan N. Ianakiev_, Mar 19 2020 %Y A036067 Cf. A036059. %K A036067 base,easy,nice,nonn %O A036067 0,3 %A A036067 _Floor van Lamoen_