a(n) = 11*a(n-1) + 3*a(n-2).

Terms

a(0) =0a(1) =1a(2) =11a(3) =124a(4) =1397a(5) =15739a(6) =177320a(7) =1997737a(8) =22507067a(9) =253570948a(10) =2856801629a(11) =32185530763a(12) =362611243280