-4980736

Appears in sequences

• Determinant of the symmetric n X n matrix A defined by A[i,j] = |i-j| for 1 <= i,j <= n.at n=19A085750
• Column 0 of triangle A118441, which is the matrix log of triangle A118435.at n=19A118442
• Hankel determinant H_n(F_3(x)) of the sequence F_3(x).at n=18A278995