One-fourth of fifth column of triangle A075181.
A075185
One-fourth of fifth column of triangle A075181.
Terms
- a(0) =6a(1) =137a(2) =2436a(3) =40614a(4) =673470a(5) =11389140a(6) =198793980a(7) =3602823840a(8) =67991283360
External references
- oeis: A075185