240786

Appears in sequences

• Largest determinant of 2n+1 X 2n+1 matrix with entries +-1 and 0 diagonal.at n=4A007842
• Generalized centered polygonal numbers.at n=26A081282
• a(n) = n*(n+1)*(n+2)*(n+4)*(n+23)/120.at n=25A101855