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

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

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

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

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