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

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

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

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

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