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 A380743 #29 Feb 12 2025 01:49:57 %S A380743 1,2,4,8,9,12,16,18,20,25,32,36,48,50,63,64,72,80,81,84,90,98,100,108, %T A380743 117,128,144,150,162,180,192,198,200,225,242,252,256,272,275,288,300, %U A380743 306,320,324,336,338,350,360,363,392,400,432,441,450,468,500,507,512,525,528,539 %N A380743 Integers m such that A379816(m) != A379815(m) + m. %Y A380743 Cf. A379815, A379816. %Y A380743 Complement of A378501. %K A380743 nonn %O A380743 1,2 %A A380743 _Michel Marcus_, Feb 11 2025