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

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

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

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

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