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

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

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

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

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