***** a4,2 *****

10 cosets
3 double cosets
Sizes:
0: ()
      [1]	1
1: (2)
      [6]	q + 2q^2 + 2q^3 + q^4
2: (2312)
      [3]	q^4 + q^5 + q^6

Neighbours of a point in 0:
1:  [6]		q + 2q^2 + 2q^3 + q^4

Neighbours of a point in 1:
0:  [1]		1
1:  [3]		-1 + q + 2q^2 + q^3
2:  [2]		q^3 + q^4

Neighbours of a point in 2:
1:  [4]		1 + 2q + q^2
2:  [2]		-1 - q + q^2 + 2q^3 + q^4