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

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

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

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

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