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 A071775 #7 Jul 03 2021 10:38:57
%S A071775 0,4,4,8,103,1,1,1,1,1,3,1,2,47,1,1,2,3,1,1,1,2,2,5,1,11,2,2,8,1,7,1,
%T A071775 19,1,1,1,1,105,1,4,12,1,1,1,3,4,1,2,4,3,3,1,1,4,1,4,3,8,4,2,1,3,5,1,
%U A071775 1,3,28,1,3,2,1,1,1,4,1,2,2,1,32,1,8,2,2,11,1,7,1,2,5,2,1,1,2,3,1,1,1,1
%N A071775 Continued fraction for C = 0.23571379....the concatenation of final decimal digits of primes.
%t A071775 With[{c=FromDigits[NumberDigit[#,0]&/@ Prime[ Range[ 500]]]}, ContinuedFraction[ c/10^IntegerLength[c]]] (* Requires Mathematica version 12 or later *) (* _Harvey P. Dale_, Jul 03 2021 *)
%o A071775 (PARI) \p200 contfrac(sum(n=0,100,(prime(n)%10)*10^-n))
%Y A071775 Cf. A007652.
%K A071775 base,cofr,easy,nonn
%O A071775 1,2
%A A071775 _Benoit Cloitre_, Jun 24 2002