Central elements in Parker's partition triangle.
A051643
Central elements in Parker's partition triangle.
Terms
- a(0) =1a(1) =3a(2) =20a(3) =169a(4) =1667a(5) =18084a(6) =208960a(7) =2527074a(8) =31630390a(9) =406680465a(10) =5342750699a(11) =71442850111a(12) =969548468960
External references
- oeis: A051643