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 A145554 #7 Jan 11 2025 18:46:16 %S A145554 57,87,93,117,145,177,189,205,219,237,249,261,267,301,321,327,345,387, %T A145554 393,415,447,453,471,477,485,515,519,535,555,591,597,625,639,657,669, %U A145554 681,687,699,717,723,747,783,795,801,807,835,849,873,895,903,925,933 %N A145554 "Compact" numbers that are neither prime nor a square of a prime; see reference for definition. %H A145554 Ray Chandler, <a href="/A145554/b145554.txt">Table of n, a(n) for n = 1..3900</a> %H A145554 Bhupinder Singh Anand, <a href="https://web.archive.org/web/20140720101301/http://alixcomsi.com/A_Minimal_Prime.pdf">A Minimal Prime Generating Theorem that suggests the Prime Difference is O(pi(p(n)^(1/2)))</a> %Y A145554 Cf. A070566. %K A145554 nonn %O A145554 1,1 %A A145554 _Ray Chandler_, Oct 13 2008