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 A106779 #7 Sep 08 2022 08:45:18 %S A106779 598999,599899,679999,688999,697999,698899,769999,779899,787999, %T A106779 789979,798799,799789,868999,869899,869989,878989,879799,879979, %U A106779 886999,887989,888799,888997,889699,889879,898897,898987,899779,967999,969889,978799 %N A106779 Primes with digit sum = 49. %H A106779 Vincenzo Librandi, <a href="/A106779/b106779.txt">Table of n, a(n) for n = 1..2700</a> %t A106779 Select[Prime[Range[990000]], Total[IntegerDigits[#]]==49 &] (* _Vincenzo Librandi_, Jul 09 2014 *) %o A106779 (Magma) [p: p in PrimesUpTo(990000) | &+Intseq(p) eq 49]; // _Vincenzo Librandi_, Jul 09 2014 %Y A106779 Cf. similar sequences listed in A244918. %K A106779 nonn,base %O A106779 1,1 %A A106779 _Zak Seidov_, May 16 2005