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 A264576 #8 Nov 18 2015 11:38:36 %S A264576 2,3,5,7,83,139,673,1289,2129,5197,5449,6737,6793,8849,12889,13001, %T A264576 21577,38281,58441,70537,90697,300809,311897,398921,2400851,2400907, %U A264576 2429579,2430601,2462353,2658899,2691659,2724937,2925137,2925193,2925641,2957897,4494929 %N A264576 Prime numbers such that sum of digits in base 8 equals product of digits in base 8. %H A264576 Chai Wah Wu, <a href="/A264576/b264576.txt">Table of n, a(n) for n = 1..10000</a> %e A264576 300809_10 = 1113411_8 is prime and the sum of digits of 1113411 is equal to the product of digits. %t A264576 Select[Prime@ Range[10^6], Total@ # == Times @@ # &@ IntegerDigits[#, 8] &] (* _Michael De Vlieger_, Nov 18 2015 *) %Y A264576 Cf. A066306. %K A264576 nonn,base %O A264576 1,1 %A A264576 _Chai Wah Wu_, Nov 17 2015