A026113 - OEIS

%I #8 Sep 16 2019 21:35:36

%S 1,2,15,112,879,7084,58123,482980,4051542,34236670,291001515,

%T 2485209984,21308128100,183304844334,1581390987039,13676468811804,

%U 118533903449357,1029280548493050,8952719328878815,77988115665259800,680280714418808610,5941248392350208706

%N T(3n,n), where T is the array defined in A026105.

%Y Cf. A026105.

%K nonn

%O 0,2

%A _Clark Kimberling_

%E a(13) corrected and more terms from _Sean A. Irvine_, Sep 16 2019