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 A112453 #7 Nov 10 2019 13:56:45 %S A112453 10761055201,26244332101,49430153305,53125756201,247173316831, %T A112453 276228879031,360187750105,516311394481,558417883465,605526139765, %U A112453 765771364801,823307740165,877094650081,904455227845,1113985668601,1237898798461,1324214598565,1353668162185,1370368908805 %N A112453 Strong pseudoprimes (base-2) equal to product of 6 primes not necessarily distinct. %H A112453 Amiram Eldar, <a href="/A112453/b112453.txt">Table of n, a(n) for n = 1..10000</a> %e A112453 a(1) = 10761055201 = 13*29*41*61*101*113. %Y A112453 Intersection of A046306 and A001262. %K A112453 nonn %O A112453 1,1 %A A112453 _Shyam Sunder Gupta_, Dec 12 2005 %E A112453 More terms from _Amiram Eldar_, Nov 10 2019