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