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 A032712 #11 Aug 13 2024 11:14:42 %S A032712 3,4,6,13,15,24,25,27,28,36,37,42,46,48,49,51,52,58,60,64,66,67,70,72, %T A032712 73,78,79,81,90,93,94,97,99,102,111,114,118,120,121,123,124,126,133, %U A032712 141,144,145,151,154,159,160,181,184,186,189,190,195,198,201,202 %N A032712 Numbers k such that k prefixed by '4' and followed by '3' is prime. %Y A032712 Cf. A032702-A032733. %K A032712 nonn,base %O A032712 1,1 %A A032712 _Patrick De Geest_, May 15 1998 %E A032712 Offset changed by _Andrew Howroyd_, Aug 13 2024