(0 20 2)(1 5 3)(4 11 6)(7 17 8)(9 21 18 15 12)(10 14 13)(16 22 19)
ALLOWS (11/8)-SEQUENCE
1: (1 5 7)

(0 20 2)(1 17 8 7 3)(4 11 6)(5)(9 21 18 15 12)(10 14 13)(16 22 19)
2: (4 11 6)

(0 20 2)(1 17 8 7 3)(4)(5)(6)(9 21 18 15 12)(10 14 13)(11)(16 22 19)
3: (1 17 8)

(0 20 2)(1 7 3)(4)(5)(6)(8)(9 21 18 15 12)(10 14 13)(11)(16 22 19)(17)
4: (9 21 12)

(0 20 2)(1 7 3)(4)(5)(6)(8)(9)(10 14 13)(11)(12 18 15)(16 22 19)(17)(21)