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

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

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

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

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