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 A067910 #16 Feb 14 2015 21:09:24 %S A067910 2,3,5,7,11,13,19,43,61,457,823,1319,1669,2113,2377,4283,15649,28201, %T A067910 40153,763027,1957763,3968947,5023199,5651099,14499503,16311941, %U A067910 23225401,52970111,172010957,5890223681,17002175293,226913316467 %N A067910 Primes of the form floor((9/8)^k). %H A067910 Charles R Greathouse IV, <a href="/A067910/b067910.txt">Table of n, a(n) for n = 1..70</a> %t A067910 Union[Select[Floor/@((9/8)^Range[250]),PrimeQ]] (* _Harvey P. Dale_, Feb 19 2011 *) %o A067910 (PARI) for(n=1, 18315, if(ispseudoprime(t=floor((9/8)^n)), print1(t", "))); v \\ _Charles R Greathouse IV_, Feb 17 2011 %K A067910 nonn %O A067910 1,1 %A A067910 _Benoit Cloitre_, Mar 03 2002