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 A133069 #17 Oct 21 2017 15:43:16 %S A133069 3,5,7,1,1,1,3,1,7,1,9,2,9,3,1,4,1,4,3,5,9,6,1,7,1,7,3,1,0,1,1,0,3,1, %T A133069 0,7,1,0,9,1,3,7,1,3,9,1,4,9,1,5,1,1,7,9,1,8,1,1,9,1,1,9,3,1,9,7,1,9, %U A133069 9,2,2,7,2,2,9,2,3,9,2,4,1,2,6,9,2,7,1,2,8,1,2,8,3,3,1,1,3,1,3 %N A133069 Successive digits of twin primes A001097. %C A133069 Also, with offset 0, decimal expansion of the constant by concatenate twin primes. Example: 0.35711131719293141435961... Hence, subsequence of A033308. - _Omar E. Pol_, Oct 21 2017 %H A133069 G. C. Greubel, <a href="/A133069/b133069.txt">Table of n, a(n) for n = 1..5000</a> %H A133069 Omar E. Pol, <a href="http://www.polprimos.com">Determinacion geometrica de los numeros primos y perfectos</a>. %t A133069 Flatten[IntegerDigits/@Union[Flatten[Select[Partition[Prime[ Range[ 100]],2,1], Last[#]- First[#] == 2&]]]] (* _Harvey P. Dale_, May 29 2014 *) %Y A133069 Cf. A001097, A033308, A053067, A133013, A133014. %K A133069 easy,nonn,cons,base %O A133069 1,1 %A A133069 _Omar E. Pol_, Nov 10 2007