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.

A001171

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.

Terms

    a(0) =1a(1) =1a(2) =4a(3) =20a(4) =148a(5) =1348a(6) =15104a(7) =198144a(8) =2998656a(9) =51290496a(10) =979732224a(11) =20661458688a(12) =476936766720

External references