198144

Appears in sequences

• From least significant term in expansion of E( tr (X'*X)^n ), X rectangular and Gaussian. Also number of types of sequential n-swap moves for traveling salesman problem.at n=7A001171
• Number of degree-n permutations of order dividing 24.at n=9A053504
• Triangle read by rows: T(n,k) (n >= 0, 1 <= k <= n+1) are the signed Hultman numbers.at n=28A189507
• Triangle read by rows, T(n,k) are covariances of inverse power traces of complex Wishart matrices with parameter c=2, for n>=1 and 1<=k<=n.at n=9A272865
• Numbers k such that A000005(k) = A000688(k).at n=32A369168