p-INVERT of A081696, where p(S) = 1 - S - S^2.

Terms

a(0) =1a(1) =3a(2) =10a(3) =37a(4) =141a(5) =548a(6) =2155a(7) =8543a(8) =34062a(9) =136393a(10) =547957a(11) =2207144a(12) =8908901a(13) =36021499a(14) =145853606a(15) =591277797a(16) =2399421839a(17) =9745388640a(18) =39611178893a(19) =161109065899a(20) =655647568024