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 A229491 #7 Oct 28 2013 12:39:22 %S A229491 1,0,6,12,30,42,45,75,126,105,175,135,255,195,285,345,435,315,693,405, %T A229491 525,765,585 %N A229491 The index of the smallest Lucas number having exactly n distinct prime factors. %Y A229491 Cf. A000032 (Lucas numbers). %Y A229491 Cf. A060320 (corresponding sequence for Fibonacci numbers). %Y A229491 Cf. A086598 (number of distinct factors in Lucas numbers). %Y A229491 Cf. A229490 (smallest Lucas number having exactly n distinct prime factors). %K A229491 nonn %O A229491 0,3 %A A229491 _T. D. Noe_, Oct 28 2013