%I A031081
%S A031081 4,18,36,54,63,65,67,69,71,72,73,75,77,79,90,108,126,144,167,
%T A031081 194,221,248,262,265,268,271,274,275,277,280,283,286,302,329,
%U A031081 356,383,410,437,464,491,505,508,511,514,517,518,520,523,526
%N A031081 Position of n-th 4 in A031076.
%Y A031081 Sequence in context: A083969 A110621 A124978 this_sequence A009956 A031303 
               A062235
%Y A031081 Adjacent sequences: A031078 A031079 A031080 this_sequence A031082 A031083 
               A031084
%K A031081 nonn
%O A031081 1,1
%A A031081 Clark Kimberling (ck6(AT)evansville.edu)