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 A048713 #6 Jul 09 2025 03:53:17 %S A048713 21,65,325,1105,5397,16705,83013,283985,1376277,4259905,21299525, %T A048713 72418385,353703189,1094795585,5440291909,18611524945,90194313237, %U A048713 279172874305,1395864371525,4745938863185,23179938501909 %N A048713 3rd row of Family 1 "90 x 150 array": generations 0 .. n of Rule 90 starting from seed pattern 21. %F A048713 SHIFTXORADJ(A048711) %K A048713 nonn %O A048713 0,1 %A A048713 Antti Karttunen