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

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

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

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

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