/// <summary>
/// Creates a chain of transpositions, that includes the initial transposition
/// </summary>
/// <param name="s0">The leading transposition</param>
/// <param name="len">The length of the chain</param>
public static SwapG <T>[] Chain(SwapG <T> s0, int len)
{
var dst = new SwapG <T> [len];
dst[0] = s0;
for (var k = 1; k < len; k++)
{
dst[k] = ++s0;
}
return(dst);
}