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

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

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

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

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