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