Number of monic polynomials with integer coefficients of degree n with all roots in unit disc.

Terms

a(0) =1a(1) =3a(2) =9a(3) =19a(4) =43a(5) =81a(6) =159a(7) =277a(8) =501a(9) =831a(10) =1415a(11) =2253a(12) =3673a(13) =5675a(14) =8933a(15) =13447a(16) =20581a(17) =30335a(18) =45345a(19) =65611a(20) =96143a(21) =136941a(22) =197221a(23) =276983a(24) =392949a(25) =545119a(26) =763081a(27) =1046835a(28) =1448085a(29) =1966831