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 A274643 #7 Jun 01 2025 17:17:20 %S A274643 1,1,1,1,2,1,1,4,4,1,1,6,10,6,1,1,10,23,22,9,1,1,14,44,61,41,12,1,1, %T A274643 22,88,158,147,71,16,1,1,30,151,353,436,300,114,20,1 %N A274643 Erroneous version of A259698. %C A274643 Included in accordance with OEIS policy of including published but incorrect sequences to serve as pointers to the correct versions. %H A274643 Albert Sade, <a href="/A000108/a000108_17.pdf">Sur les Chevauchements des Permutations</a>, published by the author, Marseille, 1949. [Annotated scanned copy] %K A274643 dead %O A274643 2,5 %A A274643 _Sean A. Irvine_, Jun 01 2025