T(4n,n), where T is the array defined in A025177.
A025186
T(4n,n), where T is the array defined in A025177.
Terms
- a(0) =1a(1) =3a(2) =29a(3) =286a(4) =2955a(5) =31350a(6) =338514a(7) =3701295a(8) =40849661a(9) =454114540a(10) =5077463898a(11) =57038882004a(12) =643269405230
External references
- oeis: A025186