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 A154573 #10 Jun 23 2025 10:25:25 %S A154573 9699690,65893166030,10042712381260,1126299564879684 %N A154573 a(n) is the first term in a chain of at least n consecutive numbers each with exactly 8 distinct prime factors. %C A154573 For exactly 9 distinct prime factors, a(1) = 223092870 and a(2) = 5702759516090. %C A154573 a(5) > 2 * 10^15. - _Toshitaka Suzuki_, Jun 23 2025 %Y A154573 Cf. A087977, A087978, A138206, A138207. %K A154573 nonn,more %O A154573 1,1 %A A154573 _Donovan Johnson_, Jan 15 2009 %E A154573 a(4) from _Toshitaka Suzuki_, Jun 23 2025