2782080

Appears in sequences

• a(n)=1*(n+2)!-2*(n+1)!-3*n!.at n=8A152456
• a(n) = sigma(n)*Fibonacci(n), where sigma(n) = A000203(n), the sum of divisors of n.at n=23A203848
• Fourier coefficients of Eisenstein series of degree 2 and weight 4: a(n) = coefficient of the matrix [n, 0; 0, 1] with determinant n.at n=5A323991