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 A032738 #10 Aug 13 2024 14:36:10
%S A032738 14612,27971,33170,36186,39608,40078,41165,41528,47382,55553,60806,
%T A032738 62318,63056,65970,66818,70558,83986,86145,89072,89280,91538,93160,
%U A032738 96222,97908,101532,102852,104609,105275,108312,108615,108792,109934
%N A032738 a(n) cannot be prefixed or followed by any digit to form a prime ('empty' prefixes and suffixes are allowed).
%C A032738 a(n) itself cannot be a prime to start with.
%e A032738 104609 prefixed or followed by a digit from ('',1,2,3,4,5,6,7,8,9) never yields a prime: '_'104609'_' = 73 x 1433; '8'104609'3' = 3089 x 26237.
%Y A032738 Cf. A032682-A032685 and A032702-A032733.
%K A032738 nonn,base
%O A032738 1,1
%A A032738 _Patrick De Geest_, May 15 1998
%E A032738 Offset changed by _Andrew Howroyd_, Aug 13 2024