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 A167517 #3 Jul 14 2012 11:32:32 %S A167517 353359367,193319491951,334733593361,344934573461,346734693491, %T A167517 732173317333,902990419043,104591046310477,133091331313327, %U A167517 141591417314177,146571466914683,150131501715031,154431545115461 %N A167517 Emirps (A007500) which are concatenation of three consecutive primes (A030469). %C A167517 A subsequence of A007500, A030469, A132903. %F A167517 A167517 = A007500 n A030469 = A007500 n A132903 (where "n" means intersection). %o A167517 (PARI) for(i=1,9999, isprime(eval(p=Str(prime(i),prime(i+1),prime(i+2)))) & isprime(eval(concat(vecextract(Vec(p),"-1..1"))))& print1(p,", ")) %K A167517 base,nonn %O A167517 1,1 %A A167517 Jonathan vos Post and _M. F. Hasler_, Nov 10 2009