Number of strings of length n over GF(4) with trace 1 and subtrace x where x = RootOf(z^2+z+1).
A073999
Number of strings of length n over GF(4) with trace 1 and subtrace x where x = RootOf(z^2+z+1).
Terms
- a(0) =0a(1) =0a(2) =3a(3) =16a(4) =60a(5) =240a(6) =1008a(7) =4096a(8) =16320a(9) =65280a(10) =261888a(11) =1048576a(12) =4193280a(13) =16773120a(14) =67104768a(15) =268435456a(16) =1073725440a(17) =4294901760a(18) =17179803648a(19) =68719476736a(20) =274877644800
External references
- oeis: A073999