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

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

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

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

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