(0 20 19)(1 21 18 16 11 8 3)(2 9 6)(4 14 5)(7 13 10)(12 17 15)
ALLOWS (11/8)-SEQUENCE
1: (0 2 9)
(0 6 2 20 19)(1 21 18 16 11 8 3)(4 14 5)(7 13 10)(9)(12 17 15)
2: (1 21 3)
(0 6 2 20 19)(1)(3 18 16 11 8)(4 14 5)(7 13 10)(9)(12 17 15)(21)
3: (2 20 6)
(0 6 19)(1)(2)(3 18 16 11 8)(4 14 5)(7 13 10)(9)(12 17 15)(20)(21)
4: (3 18 8)
(0 6 19)(1)(2)(3)(4 14 5)(7 13 10)(8 16 11)(9)(12 17 15)(18)(20)(21)