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 A106787 #15 Sep 08 2022 08:45:18 %S A106787 8989999,8999899,9989899,9999889,16999999,17989999,17999899,18889999, %T A106787 18899899,18899989,18979999,18989899,18998899,18999889,18999979, %U A106787 18999997,19889899,19899889,19979899,19987999,19988989,19989997,19999789,19999897,26998999,27799999 %N A106787 Primes with digit sum = 61. %H A106787 Vincenzo Librandi, <a href="/A106787/b106787.txt">Table of n, a(n) for n = 1..3960</a> %t A106787 Select[Prime[Range[3000000]], Total[IntegerDigits[#]]==61 &] (* _Vincenzo Librandi_, Jul 09 2014 *) %o A106787 (PARI) isok(n) = isprime(n) && (sumdigits(n) == 61); \\ _Michel Marcus_, Oct 09 2013 %o A106787 (Magma) [p: p in PrimesUpTo(30000000) | &+Intseq(p) eq 61]; // _Vincenzo Librandi_, Jul 09 2014 %Y A106787 Cf, similar sequences listed in A244918. %K A106787 nonn,base %O A106787 1,1 %A A106787 _Zak Seidov_, May 16 2005 %E A106787 More terms from _Joshua Zucker_, May 17 2006 %E A106787 More terms from _Michel Marcus_, Oct 05 2013