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 A098393 #5 May 07 2017 08:39:32 %S A098393 2,3,6,8,12,14,19,21,25,31,33,39,43,45,49,55,61,63,69,73,75,81,85,91, %T A098393 99,103,105,109,111,115,129,133,139,141,151,153,159,165,169,175,181, %U A098393 183,193,195,199,201,213,225,229,231,235,241,243,253,260,266,272,274,280 %N A098393 Prime(n)+Log2(Log2(prime(n))), where Log2=A000523. %C A098393 a(n) = A000040(n) + A098391(n). %e A098393 a(10) = A000040(10) + A098391(10) = 29 + 2 = 31. %t A098393 #+Floor[Log[2,Floor[Log[2,#]]]]&/@Prime[Range[60]] (* _Harvey P. Dale_, May 07 2017 *) %Y A098393 Cf. A098389, A014688, A098387, A098390. %K A098393 nonn %O A098393 1,1 %A A098393 _Reinhard Zumkeller_, Sep 06 2004