a(n) = n! * (hypergeom([1 - n], [2], -1) - 1) for n >= 1 and a(0) = 0.
A349781
a(n) = n! * (hypergeom([1 - n], [2], -1) - 1) for n >= 1 and a(0) = 0.
Terms
- a(0) =0a(1) =0a(2) =1a(3) =7a(4) =49a(5) =381a(6) =3331a(7) =32593a(8) =354033a(9) =4233673a(10) =55312291a(11) =784156341a(12) =11991160633a(13) =196749380413
External references
- oeis: A349781