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

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

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

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

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