Smallest positive number not in a random Fibonacci sequence of length n.

Terms

a(0) =1a(1) =2a(2) =2a(3) =3a(4) =4a(5) =4a(6) =6a(7) =6a(8) =6a(9) =15a(10) =20a(11) =20a(12) =33a(13) =38a(14) =38a(15) =85a(16) =90a(17) =90a(18) =229a(19) =252a(20) =252a(21) =483a(22) =638a(23) =638a(24) =1395a(25) =1864a(26) =1864a(27) =3705a(28) =4830a(29) =4830