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

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

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

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

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