52254720

Appears in sequences

• From solution to a difference equation.at n=9A005921
• Number of 3 X n Latin rectangles whose second row has cycles of even length only.at n=5A174560
• Triangle read by rows: coefficients in expansion of Asveld's polynomials Pi_j(x).at n=45A365962
• a(n) = n! a(n-1) / a(n-2), where a(0) = 1, a(1) = 1.at n=10A372993