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 A106784 #7 Sep 08 2022 08:45:18 %S A106784 2999999,3998999,4799999,4979999,4998989,4999889,5789999,5888999, %T A106784 5898989,5899979,5899997,5979899,5988989,5989889,5998799,5999699, %U A106784 6689999,6779999,6799799,6799889,6799979,6888989,6889997,6896999 %N A106784 Primes with digit sum = 56. %H A106784 Vincenzo Librandi, <a href="/A106784/b106784.txt">Table of n, a(n) for n = 1..6000</a> %t A106784 Select[Prime[Range[700000]], Total[IntegerDigits[#]]==56 &] (* _Vincenzo Librandi_, Jul 09 2014 *) %o A106784 (Magma) [p: p in PrimesUpTo(7000000) | &+Intseq(p) eq 56]; // _Vincenzo Librandi_, Jul 09 2014 %Y A106784 Cf. similar sequences listed in A244918. %K A106784 nonn,base %O A106784 1,1 %A A106784 _Zak Seidov_, May 16 2005