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

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

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

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

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