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 A088755 #16 Jun 20 2019 00:47:15 %S A088755 0,2,16,119,924,7445,63129,547572,4838319,4814936,43167234,391378851, %T A088755 3580266494,32997926272,306051434210,2853931339135,26737370196938, %U A088755 251515351394258,2374493400086829,22488661383368556,213597279448646179,2033961812788210675,19413250431142245897 %N A088755 Number of n-digit primes beginning with n. %C A088755 This is a subsidiary sequence suggested in A088104. %H A088755 Tomás Oliveira e Silva, <a href="http://sweet.ua.pt/tos/primes.html">Tables of values of pi(x) and of pi2(x)</a> %e A088755 a(2) = 2 since 23 and 29 are the only two 2-digit primes beginning with 2. %Y A088755 Cf. A077504, A077505, A088104, A088105, A088754. %K A088755 nonn,base %O A088755 1,2 %A A088755 _Ray Chandler_, Oct 15 2003 %E A088755 More terms from _Harvey P. Dale_, Oct 16 2003 %E A088755 a(10)-a(13) corrected and a(14)-a(22) from _Donovan Johnson_, Apr 24 2013 %E A088755 Incorrect Mathematica program deleted by _Harvey P. Dale_, Apr 25 2013 %E A088755 a(23) from _Chai Wah Wu_, Jun 20 2019