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

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

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

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

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