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

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

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

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

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