|
|
COMMENTS
| a(n) = Determinant(A-A^2+ A^3- A^4+ A^5-... A^n)
where A is the submatrix A(1..6,1..6)= of the matrix with factorial determinant
A= [[1,1,1,1,1,1,...],[1,2,1,2,1,2,...],[1,2,3,1,2,3,...],[1,2,3,4,1,2,...],[1,2,3,4,5,1,...],[1,2,3,4,5,6,...],...] note: Determinant A(1..n,1..n)= (n-1)!.
a(n) is even with respect to signs of power of A.
|
