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

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

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

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

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