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