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 A085778 #8 Dec 15 2017 17:36:29 %S A085778 19,41,43,47,53,59,83,103,109,127,137,163,173,193,197,229,241,263,283, %T A085778 307,317,331,349,367,379,397,419,431,433,439,479,491,503,509,541,547, %U A085778 557,563,569,587,593,599,601,607,641,643,647,661,683,719,773,811,853 %N A085778 Primes whose reversal is a semiprime. %H A085778 Harvey P. Dale, <a href="/A085778/b085778.txt">Table of n, a(n) for n = 1..1000</a> %t A085778 Select[Prime[Range[200]],PrimeOmega[FromDigits[Reverse[ IntegerDigits[ #]]]] ==2&] (* _Harvey P. Dale_, Apr 24 2014 *) %Y A085778 Cf. A001358. %K A085778 base,easy,nonn %O A085778 1,1 %A A085778 _Jason Earls_, Jul 23 2003