(0 12 8 6 5 3 2)(1 20 4)(7 11 9)(10 15 13)(14 18 16)(17 21 19)
ALLOWS (11/8)-SEQUENCE
1: (0 3 9)

(0 7 11 9 2)(1 20 4)(3 12 8 6 5)(10 15 13)(14 18 16)(17 21 19)
2: (1 20 4)

(0 7 11 9 2)(1)(3 12 8 6 5)(4)(10 15 13)(14 18 16)(17 21 19)(20)
3: (3 12 8)

(0 7 11 9 2)(1)(3 6 5)(4)(8)(10 15 13)(12)(14 18 16)(17 21 19)(20)
4: (0 7 11)

(0 9 2)(1)(3 6 5)(4)(7)(8)(10 15 13)(11)(12)(14 18 16)(17 21 19)(20)