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