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 A072584 #8 Jul 28 2025 03:12:07 %S A072584 3,7,23,29,31,37,43,47,59,61,103,109,137,149,151,163,167,173,191,199, %T A072584 223,233,239,241,251,257,263,307,317,359,367,379,383,431,439,443,463, %U A072584 467,479,499,503,509,541,557,569,599,607,613,617,631,643,653,659,673 %N A072584 a(n) = A000040(A072583(n)). %H A072584 Amiram Eldar, <a href="/A072584/b072584.txt">Table of n, a(n) for n = 1..10000</a> %t A072584 With[{m = 120}, Select[Transpose[{Range[m], Prime[Range[m]]}], Intersection @@ DigitCount[#, 2] == {} &]][[;; , 2]] (* _Amiram Eldar_, Jul 28 2025 *) %Y A072584 Cf. A000040, A072439, A072580, A072581, A072582, A072583. %K A072584 nonn,base,easy %O A072584 1,1 %A A072584 _Reinhard Zumkeller_, Jun 23 2002