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 A205683 #8 Mar 30 2012 18:58:11 %S A205683 4,12,16,19,30,34,44,50,56,59,62,71,77,80,84,87,92,95,98,103,107,111, %T A205683 114,119,128,130,141,147,149,154,157,160,165,168,176,182,184,189,192, %U A205683 196,199,204,206,218,220,227,233,237,240,245,247,252,261,263 %N A205683 Positions of multiples of 5 in A204890 (differences of primes). %C A205683 For a guide to related sequences, see A205558. %e A205683 In A204890=(1,3,2,5,4,2,9,8,6,4,11,10,8,...), multiples of 5 are in positions 4,12,... See the example at A205684. %t A205683 (See the program at A205684.) %Y A205683 Cf. A205684, A205558. %K A205683 nonn %O A205683 1,1 %A A205683 _Clark Kimberling_, Jan 30 2012