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 A140377 #11 Jun 03 2023 15:34:11 %S A140377 55,81,133,159,185,237,289,315,341,393,445,471,497,549,575,627,679, %T A140377 705,731,783,835,861,913,939,965,1017,1043,1095,1121,1147,1173,1199, %U A140377 1225,1251,1329,1355,1407,1485,1537,1563,1589,1615,1641,1719,1745,1771,1797 %N A140377 Composites of the form 26k + 3. %t A140377 Select[26*Range[100]+3,CompositeQ] (* _Harvey P. Dale_, Jun 03 2023 *) %o A140377 (Magma) [(26*n+3): n in [0..100]|not IsPrime(26*n+3)] // _Vincenzo Librandi_, Dec 18 2010 %Y A140377 Cf. A100202. %K A140377 nonn,less %O A140377 1,1 %A A140377 _Juri-Stepan Gerasimov_, Jun 14 2008 %E A140377 Edited by _R. J. Mathar_, Jun 16 2008