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

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

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

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

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