a(n)= abs(det[A000166(i+j+1)]), i,j=0...n, is the absolute value of the Hankel determinant of order n+1 of the derangements numbers, cf. A000166.
A101800
a(n)= abs(det[A000166(i+j+1)]), i,j=0...n, is the absolute value of the Hankel determinant of order n+1 of the derangements numbers, cf. A000166.
Terms
- a(0) =0a(1) =1a(2) =16a(3) =2160a(4) =4644864a(5) =220962816000
External references
- oeis: A101800