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