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