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

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

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

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

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