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

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

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

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

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