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 A134949 #2 Mar 31 2012 13:48:30 %S A134949 32564,256432,325648,643256,832564 %N A134949 Primitive self-power numbers (or SPN's): terms in A134698 which cannot be obtained by taking an earlier term M (say) of A134698 and prefixing, inserting or suffixing a digit of M. %e A134949 232564 is an SPN but is not primitive since it can be obtained from the SPN 32564 by prefixing the digit 2. %Y A134949 Cf. A134698, A134947. %K A134949 nonn,base,more %O A134949 1,1 %A A134949 _M. F. Hasler_, Feb 02 2008