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

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

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

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

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