443169

Appears in sequences

• Coefficient of x in the reduction by x^2 -> x+2 of the polynomial p(n,x) defined below in Comments.at n=16A192425
• Number of -7..7 arrays of n elements with first, second and third differences also in -7..7.at n=5A202123
• Number of -n..n arrays of 6 elements with first, second and third differences also in -n..n.at n=6A202127