p-INVERT of A010892, where p(S) = 1 - S - S^2 - S^3.

Terms

a(0) =1a(1) =3a(2) =10a(3) =32a(4) =102a(5) =323a(6) =1021a(7) =3224a(8) =10177a(9) =32121a(10) =101378a(11) =319960a(12) =1009830a(13) =3187145a(14) =10059029a(15) =31747584a(16) =100199485a(17) =316242607a(18) =998102878a(19) =3150142840a(20) =9942261690a(21) =31379074783a(22) =99036453193a(23) =312571964808a(24) =986517893269