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

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

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

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

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