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

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

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

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

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