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

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

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

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

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