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

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

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

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

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