Number of nX5 0..1 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.
A223224
Number of nX5 0..1 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) =19a(1) =361a(2) =1036a(3) =26376a(4) =278904a(5) =4466304a(6) =67584976a(7) =1093365880a(8) =17888793702a(9) =382511445066
External references
- oeis: A223224