-1749

Appears in sequences

• a(n) = -(n + 1)*(2*n^2 + n - 12)/6.at n=17A058372
• a(n) = -a(n-2) - a(n-3).at n=40A112455
• Center antidiagonal four in a tri-antidiagonal n-th Matrix generated triangular sequence: first element as 4==m[1,1,1].at n=50A124028
• a(n) = 3*a(n-2) - a(n-3), with a(0)=0, a(1)=a(2)=-3.at n=13A215665
• First term of n-th difference sequence of (round(k*sqrt(6))), k >= 0.at n=12A325843
• G.f. A(x) satisfies: A(x) = A(x^3 - x^5)/x^2.at n=25A350479
• Minimal determinant of an n X n symmetric Toeplitz matrix using the integers 1 to n.at n=5A350953
• Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of B(x)^k, where B(x) is the g.f. of A385014.at n=62A385018