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 A228355 #28 Apr 26 2022 07:45:15 %S A228355 2,3,5,7,1,1,3,1,7,1,9,1,3,2,9,2,1,3,7,3,1,4,3,4,7,4,3,5,9,5,1,6,7,6, %T A228355 1,7,3,7,9,7,3,8,9,8,7,9,1,0,1,3,0,1,7,0,1,9,0,1,3,1,1,7,2,1,1,3,1,7, %U A228355 3,1,9,3,1,9,4,1,1,5,1,7,5,1,3,6,1,7,6 %N A228355 Write the primes backwards in base 10 and juxtapose their digits. %C A228355 Also, decimal expansion of the constant 0.235711317191329213731434743595... %C A228355 The same sequence, but with different indexing, would arise for the table whose n-th row lists the A097944(n) digits of the n-th prime A000040(n) from right to left. - _M. F. Hasler_, Oct 24 2019 %H A228355 Vincenzo Librandi, <a href="/A228355/b228355.txt">Table of n, a(n) for n = 0..2000</a> %t A228355 Reverse[IntegerDigits//@ Reverse@Prime@Range@50//Flatten] %o A228355 (PARI) fromdigits( A=concat(apply( row(n)=Vecrev(digits(prime(n))), [1..default(realprecision)])))*.1^#A \\ Result = the constant, A = sequence of digits, row(n) = n-th row of the table. - _M. F. Hasler_, Oct 24 2019 %Y A228355 Cf. A004087, A007376, A033308. %K A228355 nonn,base,cons %O A228355 0,1 %A A228355 _Vincenzo Librandi_, Aug 21 2013