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

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

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

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

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