%N Recurrence sequence based on positions of digits in decimal places of 1/G, where G is Catalan's constant (also often called K).
%F a(1)=0, p(i)=position of first occurrence of a(i) in decimal places of 1/G, a(i+1)=p(i).
%e So for example, a(2)=1 because first decimal place of 1/G is 0.
%e a(3)=3 because 3rd decimal place of 1/G is 1, a(4)=9 because the 9th decimal place of 1/G is 3 and so on.
%Y Other recurrence sequences: A097614 for Pi, A098266 for e, A098289 for log(2), A098290 for Zeta(3), A098319 for 1/Pi, A098320 for 1/e, A098321 for gamma, A098322 for G.
%A Mark Hudson (mrmarkhudson(AT)hotmail.com), Sep 03 2004
%E a(13) from _Nathaniel Johnston_, Apr 30 2011
%E a(14)-a(16) from _D. S. McNeil_, Oct 01 2011