Number of strings of n+2 numbers x(i) in -6..6 with the sum of x(i) equal to zero and the sums of x(i)*x(i+1) and x(i)*x(i+2) equal to each other.

A184058

Number of strings of n+2 numbers x(i) in -6..6 with the sum of x(i) equal to zero and the sums of x(i)*x(i+1) and x(i)*x(i+2) equal to each other.

Terms

    a(0) =1a(1) =31a(2) =207a(3) =1531a(4) =21411a(5) =251231a(6) =2880959a(7) =33207359

External references