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

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

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

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

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