55790

Appears in sequences

• Number of (n+2)X3 0..3 arrays with all rows and columns having a strictly positive second derivative in a quadratic least squares fit.at n=1A223158
• T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with all rows and columns having a strictly positive second derivative in a quadratic least squares fit.at n=1A223159
• T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with all rows and columns having a strictly positive second derivative in a quadratic least squares fit.at n=2A223159
• Harary index of the n X n queen graph.at n=20A296196
• Numbers that are the sum of four third powers in exactly eight ways.at n=32A345153