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

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

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

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

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