a(n) = 3*a(n-1) - 10*a(n-2), with a(0)=0, a(1)=1.

Terms

a(0) =0a(1) =1a(2) =3a(3) =-1a(4) =-33a(5) =-89a(6) =63a(7) =1079a(8) =2607a(9) =-2969a(10) =-34977a(11) =-75241a(12) =124047a(13) =1124551a(14) =2133183a(15) =-4845961a(16) =-35869713a(17) =-59149529a(18) =181248543a(19) =1135240919a(20) =1593237327a(21) =-6572697209a(22) =-35650464897a(23) =-41224422601a(24) =232831381167