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