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 A076347 #5 Mar 30 2012 18:50:26 %S A076347 1,2,4,4,8,8,8,12,12,16,17,16,20,31,24,24,24,28,34,32,47,32,33,36,40, %T A076347 49,40,62,44,48,48,65,52,49,79,56,60,60,64,47,94,68,95,66,72,72,72,95, %U A076347 98,80,80,84,63,88,113,88,97,127,96,81,96,100,130,104,136,104,108,108 %N A076347 A076340(A005117(n)), real part of squarefree numbers mapped as defined in A076340, A076341. %e A076347 Applying the map as defined in A076340, A076341: %e A076347 A005117(40)=65=5*13=(4+1)*(12+1) -> (4,1)*(12,1) = (4*12-1,12+4) = (47,16), therefore a(40)=47 and A076348(40)=16. %Y A076347 Imaginary part = A076348, A076342, A076343, A076349. %K A076347 nonn %O A076347 1,2 %A A076347 _Reinhard Zumkeller_, Oct 08 2002