A diagonal of rectangular table A208896: a(n) = A208896(n+1,n).
A208897
A diagonal of rectangular table A208896: a(n) = A208896(n+1,n).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =3a(4) =19a(5) =201a(6) =3106a(7) =64522a(8) =1704795a(9) =55095601a(10) =2115975655a(11) =94466053541
External references
- oeis: A208897