%I #2 Mar 30 2012 18:37:09
%S 1,1,4,28,268,3164,43672,682632,11834536,224283416,4597330748,
%T 101100605540,2370095338372,58924635472260,1546999678599872,
%U 42734731811302304,1238309697485975648,37538075865014728096
%N Column 0 of triangle A138271; also, column 3 of A138271 shift left; also, column 0 of matrix power A138271^4 shift right.
%Y Cf. A138271; A138273, A138274; A138275.
%K nonn
%O 0,3
%A _Paul D. Hanna_, Mar 11 2008