Self-convolution of squares of factorial numbers (A001044).
A279055
Self-convolution of squares of factorial numbers (A001044).
Terms
- a(0) =1a(1) =2a(2) =9a(3) =80a(4) =1240a(5) =30240a(6) =1071504a(7) =51996672a(8) =3307723776a(9) =266872320000
External references
- oeis: A279055