-6276

Appears in sequences

• Expansion of (x^3-1+sqrt((x^4+x^3+4*x^2+x+1)*(x^2-x+1)))/(2*x^2).at n=22A337589
• a(n) is the minimal determinant of a symmetric n X n matrix using the integers 1 to n*(n+1)/2.at n=3A351147