Number of -7..7 arrays x(0..n+2) of n+3 elements with zero sum and nonzero second and third differences.

A200203

Number of -7..7 arrays x(0..n+2) of n+3 elements with zero sum and nonzero second and third differences.

Terms

    a(0) =2064a(1) =26932a(2) =352840a(3) =4664818a(4) =62361448a(5) =838749476a(6) =11349503058a(7) =154248783948

External references