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

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

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

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

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