Number of nX5 0..2 arrays with all rows and columns having a nonnegative second derivative in a quadratic least squares fit, with one and two element arrays taken as having a zero second derivative.
A223192
Number of nX5 0..2 arrays with all rows and columns having a nonnegative second derivative in a quadratic least squares fit, with one and two element arrays taken as having a zero second derivative.
Terms
- a(0) =138a(1) =19044a(2) =252544a(3) =41164952a(4) =3815358480a(5) =386807892609
External references
- oeis: A223192