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 A309343 #6 Jul 25 2019 11:47:57 %S A309343 6,9,4,13,94,852,1096,393,728,1944,858,934,5229,25,405,631,647,1259, %T A309343 416,1853,78246,182558,13736,53100,38835,58726,54516,97930,8827,11000, %U A309343 69516,5795,183115,161674,320336,41934,55891,71399,65195,189109,21045,49012 %N A309343 Position of start of first occurrence of palindromic prime(n) after the decimal point in expansion of Pi. %e A309343 First occurrence of palindromic prime(5) = 11 starts at the 94th digit after the decimal point, hence a(5) = 94. %o A309343 (SageMath) %o A309343 def postionInPi(n): %o A309343 return str(N(pi, 2000000))[1:].find(str(n)) %o A309343 [ postionInPi(i) for i in A002385[0:200] ] %Y A309343 Cf. A002385, A037024, A000796, A014777. %K A309343 nonn,base %O A309343 1,1 %A A309343 _Hauke Löffler_, Jul 24 2019